Substituted guanidine derivatives

2-Fluoro-3-{2-[3-(methoxyimino)azetidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate (Compound II-2

CDI 1.91 g (11.8 mmol) was added to a DMF (20 mL) solution of 1-[5-(2-fluoro-3-hydroxymethylphenyl)pyrimidin-2-yl]azetidin-3-one O-methyl oxime 1.78 g (5.89 mmol) synthesized in the same manner as in Reference Example 7-1, and the mixture was stirred at room temperature for 2 hours. Next, guanidine carbonate 2.12 g (11.8 mmol) was added, and the mixture was stirred at room temperature for 4 hours. After the completion of the reaction, water was added to the reaction mixture, the mixture was stirred at room temperature, and the precipitated solid was collected by filtration. Ethyl acetate was added to the obtained solid, and the mixture was stirred at 50° C. for 1 hour. The solid was then collected by filtration and dried under reduced pressure to give the title compound 2.09 g (5.40 mmol, yield 92%) as a white solid. Mass spectrum (ESI, m/z):388[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) 5:8.63 (br s, 2H), 7.54-7.47 (m, 1H), 7.45-7.39 (m, 1H), 7.33-7.26 (m, 1H), 5.06 (s, 2H), 4.85-4.78 (m, 4H), 3.83 (s, 3H).

3-{2-[3-(Ethoxyimino)azetidin-1-yl]pyrimidin-5-yl}-2-fluorobenzyl carbamimidoylcarbamate (Compound II-3)

DMF 2.6 mL was added to 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-ethyl oxime 80.5 mg (0.254 mmol) synthesized in the same manner as in Reference Example 7-2, and CDI 96.3 mg (0.594 mmol). The mixture was ultrasonicated and was stirred at room temperature for 1 hour. Next, guanidine carbonate 98.4 mg (0.546 mmol) was added, and the mixture was ultrasonicated and was stirred at room temperature for 2 hours. After the completion of the reaction, methylene chloride 15 mL and water 25 mL were added to the reaction mixture, and the mixture was stirred and cooled with ice. The precipitated solid was collected by filtration, washed with water and diethyl ether, and dried under reduced pressure to give the title compound 59.7 mg (0.149 mmol, yield 58%) as a grayish white solid.

Mass spectrum (DUIS, m/z):402[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (s, 2H), 7.58-7.47 (m, 1H), 7.46-7.39 (m, 1H), 7.36-7.27 (m, 1H), 5.06 (s, 2H), 4.87-4.76 (m, 4H), 4.09 (q, J=7.0 Hz, 2H), 1.22 (t, J=7.0 Hz, 3H).

2-Fluoro-3-(2-{3-[(methoxy-d 3 )imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-12)

CDI 140 mg (0.863 mmol) was added to a DMF (6 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-methyl-d 3 oxime 124 mg (0.406 mmol) synthesized in the same manner as in Reference Example 7-3, and the mixture was stirred at room temperature for 3 hours. Next, guanidine carbonate 150 mg (0.833 mmol) was added, and the mixture was stirred at room temperature for 3 hours. After the completion of the reaction, water was added to the reaction mixture and the mixture was stirred at room temperature. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 143 mg (0.366 mmol, yield 90%) as a white solid.

Mass spectrum (ESI, m/z):391[M+1].

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) 8:8.63 (br s, 2H), 7.55-7.47 (m, 1H), 7.46-7.38 (m, 1H), 7.34-7.25 (m, 1H), 5.06 (s, 2H), 4.86-4.76 (m, 4H).

3-[2-(3-{[(tert-Butyldimethylsilyl)oxy]imino}azetidin-1-yl)pyrimidin-5-yl]-2-fluorobenzyl carbamimidoylcarbamate (Compound II-62)

DMF 3 mL was added to 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-(tert-butyldimethylsilyl) oxime 129 mg (0.320 mmol) synthesized in the same manner as in Reference Example 13-1, and CDI 119 mg (0.734 mmol), and the mixture was stirred at room temperature for 2 hours. Next, guanidine carbonate 125 mg (0.694 mmol) was added, and the mixture was stirred at room temperature for 3 hours. After the completion of the reaction, water 20 mL was added to the reaction mixture, and the mixture was stirred. The precipitated solid was collected by filtration and was dried under reduced pressure. Ethyl acetate was added to the obtained solid, and the mixture was stirred at 75° C. After natural cooling, diisopropyl ether was added, and the mixture was stirred at room temperature. The solid was collected by filtration and was dried under reduced pressure to give the title compound 94.6 mg (0.194 mmol, yield 61%) as a white solid.

Mass spectrum (DUIS, m/z):488[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 ) δ:8.63 (d, J=1.4 Hz, 2H), 7.55-7.47 (m, 1H), 7.45-7.37 (m, 1H), 7.32-7.26 (m, 1H), 5.06 (s, 2H), 4.89-4.78 (m, 4H), 0.92 (s, 9H), 0.16 (s, 6H).

2-Fluoro-3-(2-{3-[(2-fluoroethoxy)imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-15)

CDI 160 mg (0.99 mmol) was added to a DMF (5 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-(2-fluoroethyl) oxime 150 mg (0.45 mmol) synthesized in the same manner as in Reference Example 7-4, and the mixture was stirred at room temperature for 2 hours. Next, guanidine carbonate 160 mg (0.89 mmol) was added, and the mixture was stirred at room temperature for 2.5 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: 1,2-dichloroethane:methanol) to give the title compound 63 mg (0.15 mmol, yield 33%) as a white solid.

Mass spectrum (APCI, m/z):420[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.64 (d, J=1.0 Hz, 2H), 7.55-7.47 (m, 1H), 7.45-7.39 (m, 1H), 7.33-7.27 (m, 1H), 5.06 (s, 2H), 4.88-4.80 (m, 4H), 4.73-4.55 (m, 2H), 4.34-4.21 (m, 2H).

3-(2-{3-[(2,2-Difluoroethoxy)imino]azetidin-1-yl}pyrimidin-5-yl)-2-fluorobenzyl carbamimidoylcarbamate (Compound II-18)

CDI 74 mg (0.46 mmol) was added to a DMF (3 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-(2,2-difluoroethyl) oxime 80 mg (0.23 mmol) synthesized in the same manner as in Reference Example 7-5, and the mixture was stirred at room temperature for 16 hours. Next, guanidine carbonate 82 mg (0.46 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, water was added to the reaction mixture and the mixture was stirred. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 66 mg (0.15 mmol, yield 65%) as a white solid.

Mass spectrum (ESI, m/z):438[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.66-8.61 (m, 2H), 7.55-7.47 (m, 1H), 7.46-7.38 (m, 1H), 7.34-7.26 (m, 1H), 6.25 (tt, J=3.6, 54.8 Hz, 1H), 5.06 (s, 2H), 4.89-4.81 (m, 4H), 4.32 (dt, J=3.6, 14.6 Hz, 2H).

2-Fluoro-3-(2-{3-[(2,2,2-trifluoroethoxy)imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-19)

CDI 120 mg (0.740 mmol) was added to a DMF (4 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-(2,2,2-trifluoroethyl) oxime 124 mg (0.335 mmol) synthesized in the same manner as in Reference Example 7-6, and the mixture was stirred at room temperature for 1.5 hours. Next, guanidine carbonate 120 mg (0.666 mmol) was added, and the mixture was stirred at room temperature for 16 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent:ethyl acetate:methanol) to give the title compound 80.8 mg (0.177 mmol, yield 53%) as a white solid.

Mass spectrum (ESI, m/z):456[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.64 (d, J=1.4 Hz, 2H), 7.54-7.48 (m, 1H), 7.45-7.40 (m, 1H), 7.33-7.27 (m, 1H), 5.06 (s, 2H), 4.92-4.83 (m, 4H), 4.70 (q, J=9.0 Hz, 2H).

2-Fluoro-3-(2-{3-[(3-fluoropropoxy)imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-20)

CDI 89 mg (0.55 mmol) was added to a DMF (4 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-(3-fluoropropyl) oxime 96 mg (0.28 mmol) synthesized in the same manner as in Reference Example 7-7, and the mixture was stirred at room temperature for 17 hours. Next, guanidine carbonate 99 mg (0.55 mmol) was added, and the mixture was stirred at room temperature for 4 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent:ethyl acetate:methanol) to give the title compound 0.10 g (0.23 mmol, yield 82%) as a white solid.

Mass spectrum (ESI, m/z):434[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.66-8.60 (m, 2H), 7.54-7.48 (m, 1H), 7.45-7.39 (m, 1H), 7.33-7.27 (m, 1H), 5.06 (s, 2H), 4.86-4.79 (m, 4H), 4.54 (td, J=6.0, 47.2 Hz, 2H), 4.14 (t, J=6.3 Hz, 2H), 2.12-1.90 (m, 2H).

2-Fluoro-3-{2-[3-({2-[(tetrahydropyran-2-yl)oxy]ethoxy}imino)azetidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate (Compound II-67)

CDI 74 mg (0.46 mmol) was added to a DMF (6 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-{2-[(tetrahydropyran-2-yl)oxy]ethyl} oxime 94 mg (0.23 mmol) synthesized in the same manner as in Reference Example 7-8, and the mixture was stirred at room temperature for 7 hours. Next, guanidine carbonate 81 mg (0.45 mmol) was added, and the mixture was stirred at room temperature for 14 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent:ethyl acetate:methanol) to give the title compound 85 mg (0.17 mmol, yield 74%) as a white solid.

1 H-NMR spectrum (400 MHz, DMSO-d 6 ) δ:8.64 (d, J=1.3 Hz, 2H), 7.56-7.46 (m, 1H), 7.45-7.37 (m, 1H), 7.33-7.25 (m, 1H), 5.06 (s, 2H), 4.90-4.75 (m, 4H), 4.63-4.57 (m, 1H), 4.23-4.12 (m, 2H), 3.87-3.70 (m, 2H), 3.67-3.57 (m, 1H), 3.49-3.38 (m, 1H), 1.82-1.34 (m, 6H).

2-Fluoro-3-{2-[3-({3-[(tetrahydropyran-2-yl)oxy]propoxy}imino)azetidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate (Compound II-68)

CDI 136 mg (0.839 mmol) was added to a DMF (4 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-{3-[(tetrahydropyran-2-yl)oxy]propyl} oxime 180 mg (0.418 mmol) synthesized in the same manner as in Reference Example 7-9, and the mixture was stirred at room temperature for 3 hours. Next, guanidine carbonate 151 mg (0.838 mmol) was added, and the mixture was stirred at room temperature for 3 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent:ethyl acetate:methanol) to give the title compound 145 mg (0.281 mmol, yield 67%) as a white solid.

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.4 Hz, 2H), 7.57-7.47 (m, 1H), 7.46-7.39 (m, 1H), 7.34-7.24 (m, 1H), 5.07 (s, 2H), 4.86-4.78 (m, 4H), 4.62-4.48 (m, 1H), 4.11 (t, J=6.4 Hz, 2H), 3.81-3.63 (m, 2H), 3.52-3.37 (m, 2H), 1.87 (quin, J=6.4 Hz, 2H), 1.76-1.38 (m, 6H).

2-Fluoro-3-{2-[3-({4-[(tetrahydropyran-2-yl)oxy]butoxy}imino)azetidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate (Compound II-69)

CDI 160 mg (0.987 mmol) was added to a DMF (6 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-{4-[(tetrahydropyran-2-yl)oxy]butyl} oxime 190 mg (0.427 mmol) synthesized in the same manner as in Reference Example 7-10, and the mixture was stirred at room temperature for 2 hours. Next, guanidine carbonate 160 mg (0.888 mmol) was added, and the mixture was stirred at room temperature for 16 hours. After the completion of the reaction, water was added to the reaction mixture, and the mixture was stirred at room temperature. The precipitated solid was collected by filtration. Ethyl acetate was added to the obtained solid, and the mixture was stirred at 50° C. for 30 minutes. Thereafter, the solid was collected by filtration and was dried under reduced pressure to give the title compound 166 mg (0.313 mmol, yield 73%) as a white solid.

Mass spectrum (APCI, m/z):530[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.0 Hz, 2H), 7.54-7.47 (m, 1H), 7.45-7.38 (m, 1H), 7.33-7.26 (m, 1H), 5.06 (s, 2H), 4.86-4.77 (m, 4H), 4.56-4.52 (m, 1H), 4.09-4.01 (m, 2H), 3.77-3.31 (m, 4H), 1.76-1.36 (m, 10H).

2-Fluoro-3-(2-{3-[(2-methoxyethoxy)imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-26)

CDI 62 mg (0.38 mmol) was added to a DMF (6 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-(2-methoxyethyl) oxime 66 mg (0.19 mmol) synthesized in the same manner as in Reference Example 7-11, and the mixture was stirred at room temperature for 7 hours. Next, guanidine carbonate 70 mg (0.39 mmol) was added, and the mixture was stirred at room temperature for 19 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent:ethyl acetate:methanol) to give the title compound 73 mg (0.17 mmol, yield 89%) as a white solid.

Mass spectrum (ESI, m/z):432[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.4 Hz, 2H), 7.54-7.47 (m, 1H), 7.45-7.39 (m, 1H), 7.33-7.27 (m, 1H), 5.06 (s, 2H), 4.86-4.78 (m, 4H), 4.18-4.12 (m, 2H), 3.60-3.54 (m, 2H), 3.27 (s, 3H).

2-Fluoro-3-(2-{3-[(2-{2-[(tetrahydropyran-2-yl)oxy]ethoxy}ethoxy)imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-70)

CDI 85 mg (0.52 mmol) was added to a DMF (2 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-[2-{2-[(tetrahydropyran-2-yl)oxy]ethoxy}ethyl] oxime 105 mg (0.228 mmol) synthesized in the same manner as in Reference Example 7-12, and the mixture was stirred at room temperature for 1.5 hours. Next, guanidine carbonate 85 mg (0.47 mmol) was added, and the mixture was stirred at room temperature for 16 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent:ethyl acetate:methanol) to give the title compound 98 mg (0.18 mmol, yield 79%) as a white foam.

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.3 Hz, 2H), 7.54-7.48 (m, 1H), 7.46-7.39 (m, 1H), 7.33-7.27 (m, 1H), 5.06 (s, 2H), 4.86-4.78 (m, 4H), 4.60-4.56 (m, 1H), 4.18-4.12 (m, 2H), 3.78-3.38 (m, 8H), 1.76-1.34 (m, 6H).

[({1-[5-(3-{[(Carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]methyl pivalate (Compound II-31)

CDI 30 mg (0.19 mmol) was added to a DMF (2 mL) solution of {[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-ylidene)amino]oxy}methyl pivalate 34 mg (0.084 mmol) synthesized in the same manner as in Reference Example 7-13, and the mixture was stirred at room temperature for 2 hours. Next, guanidine carbonate 30 mg (0.17 mmol) was added, and the mixture was stirred at room temperature for 16 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DIOL silica gel, eluting solvent:ethyl acetate:methanol) and (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 22 mg (0.045 mmol, yield 54%) as a white solid.

Mass spectrum (ESI, m/z):488[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.64 (s, 2H), 7.54-7.47 (m, 1H), 7.46-7.39 (m, 1H), 7.33-7.26 (m, 1H), 5.68 (s, 2H), 5.06 (s, 2H), 4.90-4.80 (m, 4H), 1.17 (s, 9H).

3-[2-(3-{[(2,2-Dimethyl-1,3-dioxan-5-yl)methoxy]imino}azetidin-1-yl)pyrimidin-5-yl]-2-fluorobenzyl carbamimidoylcarbamate (Compound II-76)

CDI 183 mg (1.13 mmol) was added to a DMF (4 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-[(2,2-dimethyl-1,3-dioxan-5-yl)methyl] oxime 147 mg (0.353 mmol) synthesized in the same manner as in Reference Example 7-14, and the mixture was stirred at room temperature for 2 hours. Next, guanidine carbonate 130 mg (0.722 mmol) was added, and the mixture was stirred at room temperature for 3 hours. After the completion of the reaction, water and a saturated aqueous sodium carbonate solution were added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol=100:0 to 90:10 (V/V)) to give the title compound 149 mg (0.297 mmol, yield 84%) as a white solid.

Mass spectrum (ESI, m/z):502[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.1 Hz, 2H), 7.54-7.48 (m, 1H), 7.44-7.39 (m, 1H), 7.32-7.27 (m, 1H), 5.06 (s, 2H), 4.86-4.79 (m, 4H), 4.09 (d, J=7.0 Hz, 2H), 3.91 (dd, J=4.0, 11.9 Hz, 2H), 3.66 (dd, J=6.1, 11.9 Hz, 2H), 2.02-1.95 (m, 1H), 1.34 (s, 3H), 1.31 (s, 3H).

3-[2-(3-{[(2,2-Dimethyl-1,3-dioxolan-4-yl)methoxy)]imino}azetidin-1-yl)pyrimidin-5-yl]-2-fluorobenzyl carbamimidoylcarbamate (Compound II-77)

CDI 173 mg (1.07 mmol) was added to a DMF (4 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-[(2,2-dimethyl-1,3-dioxolan-4-yl)methyl] oxime 143 mg (0.355 mmol) synthesized in the same manner as in Reference Example 7-15, and the mixture was stirred at room temperature for 2 hours. Next, guanidine carbonate 128 mg (0.710 mmol) was added, and the mixture was stirred at room temperature for 3 hours. After the completion of the reaction, water and a saturated aqueous sodium carbonate solution were added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol=100:0 to 90:10 (V/V)) to give the title compound 137 mg (0.281 mmol, yield 79%) as a white solid.

Mass spectrum (ESI, m/z):488[M+l].

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.3 Hz, 2H), 7.54-7.48 (m, 1H), 7.44-7.40 (m, 1H), 7.33-7.27 (m, 1H), 5.06 (s, 2H), 4.87-4.79 (m, 4H), 4.34-4.27 (m, 1H), 4.10-4.02 (m, 3H), 3.68 (dd, J=6.4, 8.4 Hz, 1H), 1.34 (s, 3H), 1.28 (s, 3H).

2-Fluoro-3-(2-{3-[(3-methoxy-2-{[(tetrahydropyran-2-yl)oxy]methyl}propoxy)imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-80)

CDI 92 mg (0.57 mmol) was added to a DMF (6 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-(3-methoxy-2-{[(tetrahydropyran-2-yl)oxy]methyl}propyl) oxime 134 mg (0.282 mmol) synthesized in the same manner as in Reference Example 7-16, and the mixture was stirred at room temperature for 4 hours. Next, guanidine carbonate 102 mg (0.566 mmol) was added, and the mixture was stirred at room temperature for 14 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 129 mg (0.231 mmol, yield 82%) as a colorless oil.

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.3 Hz, 2H), 7.55-7.48 (m, 1H), 7.46-7.38 (m, 1H), 7.35-7.26 (m, 1H), 5.06 (s, 2H), 4.88-4.77 (m, 4H), 4.58-4.52 (m, 1H), 4.12-4.03 (m, 2H), 3.77-3.56 (m, 2H), 3.47-3.34 (m, 4H), 3.25 (s, 3H), 2.29-2.12 (m, 1H), 1.86-1.36 (m, 6H).

2-Fluoro-3-[2-(3-{[2-methoxy-3-(trityloxy)propoxy]imino}azetidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate (Compound II-89)

CDI 62 mg (0.38 mmol) was added to a DMF (6 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-[2-methoxy-3-(trityloxy)propyl] oxime 0.12 g (0.19 mmol) synthesized in the same manner as in Reference Example 7-17, and the mixture was stirred at room temperature for 16 hours. Next, guanidine carbonate 68 mg (0.38 mmol) was added, and the mixture was stirred at room temperature for 5 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 0.12 g (0.17 mmol, yield 89%) as a white foam.

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) 5:8.65 (d, J=1.3 Hz, 2H), 7.57-7.19 (m, 18H), 5.07 (s, 2H), 4.85-4.77 (m, 2H), 4.73-4.53 (m, 2H), 4.18-4.06 (m, 2H), 3.66-3.59 (m, 1H), 3.34 (s, 3H), 3.21-2.98 (m, 2H).

3-[2-(3-{[2-(2,2-Dimethyl-1,3-dioxolan-4-yl)ethoxy]imino}azetidin-1-yl)pyrimidin-5-yl]-2-fluorobenzyl carbamimidoylcarbamate (Compound II-78)

CDI 70 mg (0.43 mmol) was added to a DMF (6 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-[2-(2,2-dimethyl-1,3-dioxolan-4-yl)ethyl] oxime 90 mg (0.22 mmol) synthesized in the same manner as in Reference Example 7-18, and the mixture was stirred at room temperature for 6 hours. Next, guanidine carbonate 78 mg (0.43 mmol) was added, and the mixture was stirred at room temperature for 16 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 0.10 g (0.20 mmol, yield 91%) as a white solid.

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.3 Hz, 2H), 7.55-7.48 (m, 1H), 7.46-7.39 (m, 1H), 7.33-7.26 (m, 1H), 5.06 (s, 2H), 4.86-4.78 (m, 4H), 4.17-4.05 (m, 3H), 4.02 (dd, J=6.0, 8.0 Hz, 1H), 3.61-3.44 (m, 1H), 1.95-1.78 (m, 2H), 1.32 (s, 3H), 1.27 (s, 3H).

1-[({1-[5-(3-{[(Carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]-3-methoxypropan-2-yl acetate (Compound II-52)

CDI 52 mg (0.32 mmol) was added to a DMF (4 mL) solution of 1-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-ylidene)amino]oxy}-3-methoxypropan-2-yl acetate 66 mg (0.16 mmol) synthesized in the same manner as in Reference Example 7-19, and the mixture was stirred at room temperature for 17 hours. Next, guanidine carbonate 57 mg (0.32 mmol) was added, and the mixture was stirred at room temperature for 6 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 58 mg (0.12 mmol, yield 75%) as a white solid.

Mass spectrum (ESI, m/z):504[M+l] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.3 Hz, 2H), 7.56-7.47 (m, 1H), 7.47-7.39 (m, 1H), 7.34-7.27 (m, 1H), 5.20-5.13 (m, 1H), 5.07 (s, 2H), 4.88-4.73 (m, 4H), 4.22-4.09 (m, 2H), 3.57-3.44 (m, 2H), 3.27 (s, 3H), 2.04 (s, 3H).

2-Fluoro-3-(2-{3-[(3-fluoro-2-{[(tetrahydropyran-2-yl)oxy]methyl}propoxy)imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-75)

CDI 68 mg (0.42 mmol) was added to a DMF (3 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-(3-fluoro-2-{[(tetrahydropyran-2-yl)oxy]methyl}propyl) oxime 65 mg (0.14 mmol) synthesized in the same manner as in Reference Example 7-20, and the mixture was stirred at room temperature for 2 hours. Next, CDI 30 mg (0.23 mmol) was added, and the mixture was stirred at room temperature for 16 hours. Next, guanidine carbonate 51 mg (0.28 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, water and a saturated aqueous sodium carbonate solution were added to the reaction mixture, and followed by extraction with ethyl acetate three times. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol=100:0 to 90:10 (V/V)) to give the title compound 52 mg (0.095 mmol, yield 68%) as a white solid.

Mass spectrum (ESI, m/z):548[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.4 Hz, 2H), 7.54-7.48 (m, 1H), 7.45-7.40 (m, 1H), 7.33-7.28 (m, 1H), 5.06 (s, 2H), 4.87-4.80 (m, 4H), 4.64-4.42 (m, 3H), 4.16-4.07 (m, 2H), 3.77-3.62 (m, 2H), 3.49-3.40 (m, 2H), 2.42-2.30 (m, 1H), 1.76-1.58 (m, 2H), 1.54-1.41 (m, 4H).

2-Fluoro-3-[2-(3-{[2-fluoro-3-(trityloxy)propoxy]imino}azetidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate (Compound II-90)

CDI 1.0 g (6.2 mmol) was added to a DMF (16 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-[2-fluoro-3-(trityloxy)propyl] oxime 1.7 g (2.8 mmol) synthesized in the same manner as in Reference Example 7-21, and the mixture was stirred at room temperature for 18 hours. Next, guanidine carbonate 1.1 g (6.1 mmol) was added, and the mixture was stirred at room temperature for 20 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 1.9 g (2.7 mmol, yield 96%) as a white solid.

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.65 (d, J=1.4 Hz, 2H), 7.58-7.22 (m, 18H), 5.08 (s, 2H), 5.04-4.85 (m, 1H), 4.84-4.78 (m, 2H), 4.76-4.62 (m, 2H), 4.47-4.14 (m, 2H), 3.37-3.13 (m, 2H).

2-Fluoro-3-{2-[3-({3-methoxy-4-[(tetrahydropyran-2-yl)oxy]butoxy}imino)azetidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate (Compound II-81)

CDI 108 mg (0.666 mmol) was added to a DMF (2 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-{3-methoxy-4-[(tetrahydropyran-2-yl)oxy]butyl} oxime 79 mg (0.17 mmol) synthesized in the same manner as in Reference Example 7-22, and the mixture was stirred at room temperature for 3 hours. Next, guanidine carbonate 120 mg (0.666 mmol) was added, and the mixture was stirred at room temperature for 1 hour. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous magnesium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DIOL silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 62 mg (0.11 mmol, yield 65%) as a white solid.

Mass spectrum (ESI, m/z):560[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.3 Hz, 2H), 7.55-7.46 (m, 1H), 7.46-7.38 (m, 1H), 7.34-7.26 (m, 1H), 5.06 (s, 2H), 4.88-4.76 (m, 4H), 4.67-4.53 (m, 1H), 4.17-4.07 (m, 2H), 3.87-3.23 (m, 8H), 1.95-1.34 (m, 8H).

4-[({1-[5-(3-{[(Carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]butane-1,2-diyl diacetate (Compound II-53)

CDI 47 mg (0.29 mmol) was added to a DMF (2 mL) solution of 4-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-ylidene)amino]oxy}butane-1,2-diyl diacetate 53 mg (0.12 mmol) synthesized in the same manner as in Reference Example 26, and the mixture was stirred at room temperature for 6 hours. Next, guanidine carbonate 52 mg (0.29 mmol) was added, and the mixture was stirred at room temperature for 18 hours. After the completion of the reaction, water was added to the reaction mixture, and the mixture was stirred. The precipitated solid was collected by filtration. Ethyl acetate was added to the obtained solid, and the mixture was stirred. Thereafter, the solid was collected by filtration and was dried under reduced pressure to give the title compound 20 mg (0.037 mmol, yield 31%) as a white solid.

Mass spectrum (ESI, m/z):546[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) 5:8.63 (d, J=1.4 Hz, 2H), 7.55-7.47 (m, 1H), 7.46-7.39 (m, 1H), 7.34-7.25 (m, 1H), 5.15-5.02 (m, 3H), 4.87-4.76 (m, 4H), 4.22 (dd, J=3.2, 12.0 Hz, 1H), 4.16-4.01 (m, 3H), 2.03 (s, 3H), 2.01 (s, 3H), 1.99-1.82 (m, 2H).

2-[({1-[5-(3-{[(Carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]ethyl acetate (Compound II-36)

CDI 24 mg (0.15 mmol) was added to a DMF (2 mL) solution of 2-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-ylidene)amino]oxy}ethyl acetate 28 mg (0.075 mmol) synthesized in the same manner as in Reference Example 7-23, and the mixture was stirred at room temperature for 16 hours. Next, CDI 12 mg (0.074 mmol) was added, and the mixture was stirred at room temperature for 2 hours. Next, guanidine carbonate 41 mg (0.23 mmol) was added, and the mixture was stirred at room temperature for 1 hour. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous magnesium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol). Ethyl acetate was added to the crude product thus obtained, and the mixture was stirred. The solid was collected by filtration and was dried under reduced pressure to give the title compound 8.0 mg (0.017 mmol, yield 23%) as a white solid.

Mass spectrum (ESI, m/z):460[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.4 Hz, 2H), 7.54-7.47 (m, 1H), 7.46-7.38 (m, 1H), 7.33-7.27 (m, 1H), 5.06 (s, 2H), 4.88-4.76 (m, 4H), 4.27-4.20 (m, 4H), 2.04 (s, 3H).

2-[({1-[5-(3-{[(Carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]ethyl propionate (Compound II-37)

CDI 70.0 mg (0.432 mmol) was added to a DMF (2 mL) solution of 2-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-ylidene)amino]oxy}ethyl propionate 82.2 mg (0.212 mmol) synthesized in the same manner as in Reference Example 7-24, and the mixture was stirred at room temperature for 4.25 hours. Next, DMF 2 mL and guanidine carbonate 94.2 mg (0.523 mmol) were added, and the mixture was stirred at room temperature for 2.5 hours. After the completion of the reaction, the reaction mixture was poured to water 30 mL. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 85.4 mg (0.180 mmol, yield 85%) as a white solid.

Mass spectrum (ESI, m/z):474[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.66-8.61 (m, 2H), 7.54-7.47 (m, 1H), 7.45-7.38 (m, 1H), 7.33-7.27 (m, 1H), 5.06 (s, 2H), 4.87-4.77 (m, 4H), 4.28-4.20 (m, 4H), 2.34 (q, J=7.5 Hz, 2H), 1.04 (t, J=7.5 Hz, 3H).

2-[({1-[5-(3-{[(Carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]ethyl butyrate (Compound II-38)

CDI 79 mg (0.49 mmol) was added to a DMF (2 mL) solution of 2-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-ylidene)amino]oxy}ethyl butyrate 93 mg (0.23 mmol) synthesized in the same manner as in Reference Example 7-25, and the mixture was stirred at room temperature for 1 hour. Next, guanidine carbonate 91 mg (0.51 mmol) was added, and the mixture was stirred at room temperature for 15 hours. After the completion of the reaction, the reaction mixture was poured to water 25 mL. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 104 mg (0.21 mmol, yield 91%) as a white solid.

Mass spectrum (ESI, m/z):488[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.64 (d, J=1.3 Hz, 2H), 7.54-7.48 (m, 1H), 7.45-7.39 (m, 1H), 7.33-7.27 (m, 1H), 5.06 (s, 2H), 4.86-4.77 (m, 4H), 4.28-4.20 (m, 4H), 2.30 (t, J=7.3 Hz, 2H), 1.55 (sext, J=7.3 Hz, 2H), 0.89 (t, J=7.3 Hz, 3H).

2-[({1-[5-(3-{[(Carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]ethyl benzoate (Compound II-39)

CDI 68.2 mg (0.427 mmol) was added to a DMF (3 mL) solution of 2-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-ylidene)amino]oxy}ethyl benzoate 90.9 mg (0.208 mmol) synthesized in the same manner as in Reference Example 7-26, and the mixture was stirred at room temperature for 4 hours. Next, DMF 2 mL and guanidine carbonate 91.3 mg (0.507 mmol) were added, and the mixture was stirred at room temperature for 4 hours. After the completion of the reaction, the reaction mixture was poured to water 30 mL. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 90.7 mg (0.174 mmol, yield 84%) as a white solid.

Mass spectrum (ESI, m/z): 522[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.62 (d, J=0.8 Hz, 2H), 8.03-7.96 (m, 2H), 7.71-7.64 (m, 1H), 7.59-7.38 (m, 4H), 7.33-7.21 (m, 1H), 5.07 (s, 2H), 4.84-4.76 (m, 4H), 4.56-4.50 (m, 2H), 4.41-4.34 (m, 2H).

3-[({1-[5-(3-{[(Carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]-2-{[(tetrahydropyran-2-yl)oxy]methyl}propyl acetate (Compound II-82)

CDI 65 mg (0.40 mmol) was added to a DMF (4 mL) solution of 3-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-ylidene)amino]oxy}-2-{[(tetrahydropyran-2-yl)oxy]methyl}propyl acetate 90 mg (0.18 mmol) synthesized in the same manner as in Reference Example 7-27, and the mixture was stirred at room temperature for 1.5 hours. Next, guanidine carbonate 65 mg (0.36 mmol) was added, and the mixture was stirred at room temperature for 16 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 114 mg (including impurities) as a colorless oil.

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.3 Hz, 2H), 7.55-7.48 (m, 1H), 7.45-7.39 (m, 1H), 7.33-7.27 (m, 1H), 5.06 (s, 2H), 4.87-4.79 (m, 4H), 4.59-4.53 (m, 1H), 4.11-4.07 (m, 4H), 3.76-3.36 (m, 4H), 2-63-2.42 (m, 1H), 2.02 (s, 3H), 1.75-1.38 (m, 6H).

3-[({1-[5-(3-{[(Carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]-2-{[(tetrahydropyran-2-yl)oxy]methyl}propyl propionate (Compound II-83)

CDI 60 mg (0.37 mmol) was added to a DMF (2 mL) solution of 3-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-ylidene)amino]oxy}-2-{[(tetrahydropyran-2-yl)oxy]methyl}propyl propionate 85 mg (0.17 mmol) synthesized in the same manner as in Reference Example 7-28, and the mixture was stirred at room temperature for 2 hours. Next, guanidine carbonate 60 mg (0.33 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 98 mg (including impurities) as a colorless oil.

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.65-8.61 (m, 2H), 7.54-7.48 (m, 1H), 7.45-7.39 (m, 1H), 7.33-7.27 (m, 1H), 5.06 (s, 2H), 4.86-4.78 (m, 4H), 4.57-4.53 (m, 1H), 4.15-4.04 (m, 4H), 3.75-3.34 (m, 4H), 2.36-2.29 (m, 3H), 1.75-1.37 (m, 6H), 1.03 (t, J=7.5 Hz, 3H).

3-[({1-[5-(3-{[(Carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]-2-{[(tetrahydropyran-2-yl)oxy]methyl}propyl butyrate (Compound II-84)

CDI 60 mg (0.37 mmol) was added to a DMF (2 mL) solution of 3-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-ylidene)amino]oxy}-2-{[(tetrahydropyran-2-yl)oxy]methyl}propyl butyrate 89 mg (0.17 mmol) synthesized in the same manner as in Reference Example 7-29, and the mixture was stirred at room temperature for 2 hours. Next, guanidine carbonate 60 mg (0.33 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 92 mg (including impurities) as a white solid.

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.1 Hz, 2H), 7.54-7.48 (m, 1H), 7.45-7.39 (m, 1H), 7.34-7.27 (m, 1H), 5.06 (s, 2H), 4.87-4.77 (m, 4H), 4.57-4.53 (m, 1H), 4.16-4.03 (m, 4H), 3.75-3.64 (m, 2H), 3.47-3.35 (m, 2H), 2.37-2.32 (m, 1H), 2.29 (t, J=7.3 Hz, 2H), 1.74-1.38 (m, 8H), 0.88 (t, J=7.3 Hz, 3H).

3-[({1-[5-(3-{[(Carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]-2-{[(tetrahydropyran-2-yl)oxy]methyl}propyl isobutyrate (Compound II-85)

CDI 72.0 mg (0.444 mmol) was added to a DMF (4 mL) solution of 3-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-ylidene)amino]oxy}-2-{[(tetrahydropyran-2-yl)oxy]methyl}propyl isobutyrate 117 mg (0.221 mmol) synthesized in the same manner as in Reference Example 7-30, and the mixture was stirred at room temperature for 15 hours. Next, guanidine carbonate 80.0 mg (0.444 mmol) was added, and the mixture was stirred at room temperature for 3 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 119 mg (0.193 mmol, yield 88%) as a white foam.

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.4 Hz, 2H), 7.54-7.48 (m, 1H), 7.45-7.39 (m, 1H), 7.33-7.26 (m, 1H), 5.06 (s, 2H), 4.87-4.78 (m, 4H), 4.62-4.49 (m, 1H), 4.16-4.02 (m, 4H), 3.74-3.58 (m, 2H), 3.49-3.33 (m, 2H), 2.55 (sep, J=7.0 Hz, 1H), 2.41-2.27 (m, 1H), 1.80-1.35 (m, 6H), 1.09 (d, J=7.0 Hz, 6H).

3-[({1-[5-(3-{[(Carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]-2-{[(tetrahydropyran-2-yl)oxy]methyl}propyl pivalate (Compound II-86)

CDI 65 mg (0.40 mmol) was added to a DMF (4 mL) solution of 3-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-ylidene)amino]oxy}-2-{[(tetrahydropyran-2-yl)oxy]methyl}propyl pivalate 99 mg (0.18 mmol) synthesized in the same manner as in Reference Example 7-31, and the mixture was stirred at room temperature for 15 hours. Next, guanidine carbonate 70 mg (0.39 mmol) was added, and the mixture was stirred at room temperature for 21 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 0.11 g (0.17 mmol, yield 94%) as a white foam.

1 H-NMR spectrum (400 MHz, DMSO-d 6 ) δ:8.64 (d, J=1.3 Hz, 2H), 7.56-7.47 (m, 1H), 7.45-7.38 (m, 1H), 7.33-7.25 (m, 1H), 5.06 (s, 2H), 4.87-4.78 (m, 4H), 4.59-4.53 (m, 1H), 4.18-4.01 (m, 4H), 3.84-3.61 (m, 2H), 3.49-3.34 (m, 2H), 2.40-2.28 (m, 1H), 1.82-1.35 (m, 6H), 1.15 (s, 9H).

3-[({1-[5-(3-{[(Carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]-2-{[(tetrahydropyran-2-yl)oxy]methyl}propyl hexanoate (Compound II-87)

CDI 109 mg (0.672 mmol) was added to a DMF (4 mL) solution of 3-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-ylidene)amino]oxy}-2-{[(tetrahydropyran-2-yl)oxy]methyl}propyl hexanoate 188 mg (0.337 mmol) synthesized in the same manner as in Reference Example 7-32, and the mixture was stirred at room temperature for 3 hours. Next, guanidine carbonate 121 mg (0.672 mmol) was added, and the mixture was stirred at room temperature for 16 hours. After the completion of the reaction, a saturated aqueous ammonium chloride solution was added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous magnesium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 163 mg (0.253 mmol, yield 75%) as a white solid.

Mass spectrum (ESI, m/z):644[M+1] + .

3-[({1-[5-(3-{[(Carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]-2-{[(tetrahydropyran-2-yl)oxy]methyl}propyl benzoate (Compound II-88)

CDI 65.2 mg (0.402 mmol) was added to a DMF (3 mL) solution of 3-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-ylidene)amino]oxy}-2-{[(tetrahydropyran-2-yl)oxy]methyl}propyl benzoate 109 mg (0.193 mmol) synthesized in the same manner as in Reference Example 7-33, and the mixture was stirred at room temperature for 3 hours. Next, CDI 65.0 mg (0.401 mmol) was added, and the mixture was stirred at room temperature for 2 hours. Next, guanidine carbonate 70.0 mg (0.389 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, water and a saturated aqueous sodium carbonate solution were added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol=100:0 to 88:12 (V/V)) to give the title compound 102 mg (0.157 mmol, yield 81%) as a colorless oil.

Mass spectrum (ESI, m/z):650[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 ) δ:8.63 (d, J=1.3 Hz, 2H), 8.00-7.96 (m, 2H), 7.66-7.61 (m, 1H), 7.54-7.48 (m, 3H), 7.44-7.39 (m, 1H), 7.32-7.27 (m, 1H), 5.06 (s, 2H), 4.82-4.75 (m, 4H), 4.61-4.57 (m, 1H), 4.42-4.35 (m, 2H), 4.26-4.16 (m, 2H), 3.82-3.74 (m, 1H), 3.74-3.67 (m, 1H), 3.53-3.36 (m, 2H), 2.54-2.45 (m, 1H), 1.75-1.53 (m, 2H), 1.51-1.39 (m, 4H).

2-Fluoro-3-{5-fluoro-6-[3-(methoxyimino)azetidin-1-yl]pyridin-3-yl}benzyl carbamimidoylcarbamate (Compound III-78)

CDI 1.4 g (8.6 mmol) was added to a DMF (15 mL) solution of 1-{3-fluoro-5-[2-fluoro-3-(hydroxymethyl)phenyl]pyridin-2-yl}azetidin-3-one O-methyl oxime 1.22 g (3.82 mmol) synthesized in the same manner as in Reference Example 7-34, and the mixture was stirred at room temperature for 1.5 hours. Next, guanidine carbonate 1.4 g (7.8 mmol) was added, and the mixture was stirred at room temperature for 16 hours. After the completion of the reaction, water was added to the reaction mixture, and the mixture was stirred at room temperature. The precipitated solid was collected by filtration. Ethyl acetate was added to the obtained solid, and the mixture was stirred at 50° C. for 1 hour. The solid was collected by filtration and was dried under reduced pressure to give the title compound 1.31 g (3.24 mmol, yield 85%) as a white solid.

Mass spectrum (ESI, m/z):405[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.19-8.15 (m, 1H), 7.78-7.71 (m, 1H), 7.53-7.46 (m, 1H), 7.44-7.37 (m, 1H), 7.31-7.24 (m, 1H), 5.06 (s, 2H), 4.90-4.83 (m, 4H), 3.82 (s, 3H).

2-Fluoro-3-(5-fluoro-6-{3-[(methoxy-d 3 )imino]azetidin-1-yl}pyridin-3-yl)benzyl carbamimidoylcarbamate (Compound 111-88)

CDI 110 mg (0.678 mmol) was added to a DMF (4 mL) suspension of 1-{3-fluoro-5-[2-fluoro-3-(hydroxymethyl)phenyl]pyridin-2-yl}azetidin-3-one O-methyl-d 3 oxime 99 mg (0.31 mmol) synthesized in the same manner as in Reference Example 7-35, and the mixture was stirred at room temperature for 1 hour. Next, guanidine carbonate 110 mg (0.611 mmol) was added, and the mixture was stirred at room temperature for 16 hours. After the completion of the reaction, water was added to the reaction mixture, and the mixture was stirred at room temperature. The precipitated solid was collected by filtration. Ethyl acetate was added to the obtained solid, and the mixture was stirred at 50° C. for 1 hour. Thereafter, the solid was collected by filtration and was dried under reduced pressure to give the title compound 88 mg (0.22 mmol, yield 71%) as a white solid.

Mass spectrum (ESI, m/z):408[M+l] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.20-8.15 (m, 1H), 7.79-7.70 (m, 1H), 7.53-7.47 (m, 1H), 7.43-7.37 (m, 1H), 7.32-7.25 (m, 1H), 5.06 (s, 2H), 4.90-4.82 (m, 4H).

3-[6-(3-{[2-(2,2-Dimethyl-1,3-dioxolan-4-yl)ethoxy]imino}azetidin-1-yl)-5-fluoropyrid in-3-yl]-2-fluorobenzyl carbamimidoylcarbamate (Compound III-154)

CDI 215 mg (1.33 mmol) was added to a DMF (6 mL) suspension of 1-{3-fluoro-5-[2-fluoro-3-(hydroxymethyl)phenyl]pyridin-2-yl}azetidin-3-one O-[2-(2,2-dimethyl-1,3-dioxolan-4-yl)ethyl] oxime 255 mg (0.588 mmol) synthesized in the same manner as in Reference Example 7-36, and the mixture was stirred at room temperature for 3 hours. Next, guanidine carbonate 215 mg (1.19 mmol) was added, and the mixture was stirred at room temperature for 1.5 hours. After the completion of the reaction, water was added to the reaction mixture and the mixture was stirred at room temperature. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 244 mg (0.471 mmol, yield 80%) as a white solid.

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.20-8.15 (m, 1H), 7.79-7.71 (m, 1H), 7.53-7.46 (m, 1H), 7.44-7.38 (m, 1H), 7.31-7.25 (m, 1H), 5.06 (s, 2H), 4.91-4.83 (m, 4H), 4.17-4.05 (m, 3H), 4.05-3.99 (m, 1H), 3.53-3.46 (m, 1H), 1.91-1.79 (m, 2H), 1.32 (s, 3H), 1.27 (s, 3H).

3-[6-(3-{[(2,2-Dimethyl-1,3-dioxan-5-yl)methoxy]imino}azetidin-1-yl)-5-fluoropyridin-3-yl]-2-fluorobenzyl carbamimidoylcarbamate (Compound III-152)

CDI 45 mg (0.28 mmol) was added to a DMF (4 mL) suspension of 1-{3-fluoro-5-[2-fluoro-3-(hydroxymethyl)phenyl]pyridin-2-yl}azetidin-3-one O-[(2,2-dimethyl-1,3-dioxan-5-yl)methyl] oxime 54 mg (0.12 mmol) synthesized in the same manner as in Reference Example 7-37, and the mixture was stirred at room temperature for 2 hours. Next, guanidine carbonate 45 mg (0.25 mmol) was added, and the mixture was stirred at room temperature for 16 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The resultant oil was dried under reduced pressure to give a crude product 116 mg including the title compound as a colorless oil.

2-Fluoro-3-[5-fluoro-6-(3-{[2-fluoro-3-(trityloxy)propoxy]imino}azetidin-1-yl)pyridin-3-yl]benzyl carbamimidoylcarbamate (Compound III-166)

CDI 300 mg (1.85 mmol) was added to a DMF (6 mL) solution of 1-{3-fluoro-5-[2-fluoro-3-(hydroxymethyl)phenyl]pyridin-2-yl}azetidin-3-one O-[2-fluoro-3-(trityloxy)propyl] oxime 576 mg (0.924 mmol) synthesized in the same manner as in Reference Example 7-38, and the mixture was stirred at room temperature for 3 hours. Next, guanidine carbonate 333 mg (1.85 mmol) was added, and the mixture was stirred at room temperature for 15 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with a saturated aqueous sodium hydrogen carbonate solution, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 631 mg (0.890 mmol, yield 96%) as a white foam.

1 H-NMR spectrum (400 MHz, DMSO-d 6 ) δ:8.24-8.18 (m, 1H), 7.84-7.74 (m, 1H), 7.56-7.46 (m, 1H), 7.44-7.22 (m, 17H), 5.06 (s, 2H), 5.03-4.66 (m, 5H), 4.43-4.15 (m, 2H), 3.31-3.12 (m, 2H).

2-Fluoro-3-{6-[3-(methoxyimino)azetidin-1-yl]pyridin-3-yl}benzyl carbamimidoylcarbamate (Compound III-2)

CDI 105 mg (0.648 mmol) was added to a DMF (2 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyridin-2-yl}azetidin-3-one O-methyl oxime 49 mg (0.16 mmol) synthesized in the same manner as in Reference Example 7-39, and the mixture was stirred at room temperature for 14 hours. Next, guanidine carbonate 60 mg (0.33 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, water and a saturated aqueous sodium carbonate solution were added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol=100:0 to 88:12 (V/V)) to give the title compound 44 mg (0.11 mmol, yield 69%) as a white solid.

Mass spectrum (ESI, m/z):387[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.32-8.29 (m, 1H), 7.81-7.77 (m, 1H), 7.49-7.33 (m, 2H), 7.31-7.23 (m, 1H), 6.71-6.66 (m, 1H), 5.06 (s, 2H), 4.76-4.69 (m, 4H), 3.82 (s, 3H).

2-Fluoro-3-{6-[3-(methoxyimino)azetidin-1-yl]-5-methylpyridin-3-yl}benzyl carbamimidoylcarbamate (Compound III-716)

CDI 175 mg (1.08 mmol) was added to a DMF (2 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]-3-methylpyridin-2-yl}azetidin-3-one O-methyl oxime 85 mg (0.27 mmol) synthesized in the same manner as in Reference Example 7-40, and the mixture was stirred at room temperature for 3 hours. Next, guanidine carbonate 194 mg (1.08 mmol) was added, and the mixture was stirred at room temperature for 1 hour. After the completion of the reaction, water was added to the reaction mixture, and the mixture was stirred. The precipitated solid was collected by filtration. Ethyl acetate was added to the obtained solid, and the mixture was stirred. Thereafter, the solid was collected by filtration and was dried under reduced pressure to give the title compound 21 mg (0.052 mmol, yield 19%) as a white solid.

Mass spectrum (ESI, m/z):401[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.20-8.16 (m, 1H), 7.63-7.58 (m, 1H), 7.49-7.41 (m, 1H), 7.41-7.34 (m, 1H), 7.31-7.22 (m, 1H), 5.06 (s, 2H), 4.87-4.81 (m, 4H), 3.81 (s, 3H), 2.25 (s, 3H).

3-{5-Cyano-6-[3-(methoxyimino)azetidin-1-yl]pyridin-3-yl}-2-fluorobenzyl carbamimidoylcarbamate (Compound III-1482)

CDI 130 mg (0.802 mmol) was added to a DMF (6 mL) solution of 5-[2-fluoro-3-(hydroxymethyl)phenyl]-2-[3-(methoxyimino)azetidin-1-yl]nicotinonitrile 129 mg (0.395 mmol) synthesized in the same manner as in Reference Example 7-41, and the mixture was stirred at room temperature for 3 hours. Next, guanidine carbonate 150 mg (0.833 mmol) was added, and the mixture was stirred at room temperature for 17 hours. After the completion of the reaction, water was added to the reaction mixture, and the mixture was stirred. The precipitated solid was collected by filtration. Ethyl acetate was added to the obtained solid, and the mixture was stirred at room temperature for 1 hour. The solid was collected by filtration and was dried under reduced pressure to give the title compound 98.0 mg (0.238 mmol, yield 60%) as a white solid.

Mass spectrum (ESI, m/z):412[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.59-8.54 (m, 1H), 8.26-8.22 (m, 1H), 7.55-7.47 (m, 1H), 7.46-7.39 (m, 1H), 7.34-7.25 (m, 1H), 5.06 (s, 2H), 5.03-4.99 (m, 4H), 3.84 (s, 3H).

3-{5-Chloro-6-[3-(methoxyimino)azetidin-1-yl]pyridin-3-yl}-2-fluorobenzyl carbamimidoylcarbamate (Compound III-324)

CDI 43 mg (0.27 mmol) was added to a DMF (2 mL) suspension of 1-{3-chloro-5-[2-fluoro-3-(hydroxymethyl)phenyl]pyridin-2-yl}azetidin-3-one O-methyl oxime 40 mg (0.12 mmol) synthesized in the same manner as in Reference Example 7-42, and the mixture was stirred at room temperature for 1 hour. Next, guanidine carbonate 43 mg (0.24 mmol) was added, and the mixture was stirred at room temperature for 2.5 hours. After the completion of the reaction, water was added to the reaction mixture, and the mixture was stirred at room temperature. The precipitated solid was collected by filtration. Ethyl acetate was added to the obtained solid, and the mixture was stirred at 50° C. for 1 hour. Thereafter, the solid was collected by filtration and was dried under reduced pressure to give the title compound 39 mg (0.093 mmol, yield 78%) as a white solid.

Mass spectrum (ESI, m/z):421[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.34-8.28 (m, 1H), 7.93-7.88 (m, 1H), 7.54-7.47 (m, 1H), 7.44-7.39 (m, 1H), 7.31-7.25 (m, 1H), 5.06 (s, 2H), 4.96-4.89 (m, 4H), 3.82 (s, 3H).

3-{5-(Difluoromethyl)-6-[3-(methoxyimino)azetidin-1-yl]pyridin-3-yl}-2-fluorobenzyl carbamimidoylcarbamate (Compound III-960)

CDI 125 mg (0.771 mmol) was added to a DMF (3 mL) solution of 1-{3-(difluoromethyl)-5-[2-fluoro-3-(hydroxymethyl)phenyl]pyridin-2-yl}azetidin-3-on e O-methyl oxime 108 mg (0.307 mmol) synthesized in the same manner as in Reference Example 7-43, and the mixture was stirred at room temperature for 1.5 hours. Next, CDI 50 mg (0.31 mmol) was added, and the mixture was stirred at room temperature for 1 hour. Next, guanidine carbonate 112 mg (0.622 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, water was added to the reaction mixture, and the mixture was stirred at room temperature for 30 minutes. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 104 mg (0.238 mmol, yield 78%) as a white solid.

Mass spectrum (ESI, m/z):437[M+l] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.51-8.47 (m, 1H), 8.01-7.98 (m, 1H), 7.53-7.47 (m, 1H), 7.44-7.38 (m, 1H), 7.34-6.97 (m, 2H), 5.07 (s, 2H), 4.94-4.83 (m, 4H), 3.83 (s, 3H).

3-{5-Cyclopropyl-6-[3-(methoxyimino)azetidin-1-yl]pyridin-3-yl}-2-fluorobenzyl carbamimidoylcarbamate (Compound III-1308)

CDI 200 mg (1.23 mmol) was added to a DMF (3 mL) solution of 1-{3-cyclopropyl-5-[2-fluoro-3-(hydroxymethyl)phenyl]pyridin-2-yl}azetidin-3-one O-methyl oxime 121 mg (0.354 mmol) synthesized in the same manner as in Reference Example 7-44, and the mixture was stirred at room temperature for 14 hours. Next, guanidine carbonate 130 mg (0.722 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, water was added to the reaction mixture, and the mixture was stirred at room temperature for 30 minutes. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 97.1 mg (0.228 mmol, yield 64%) as a white solid.

Mass spectrum (ESI, m/z):427[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.20-8.13 (m, 1H), 7.47-7.40 (m, 2H), 7.40-7.35 (m, 1H), 7.29-7.22 (m, 1H), 5.05 (s, 2H), 4.94-4.90 (m, 4H), 3.82 (s, 3H), 1.98-1.82 (m, 1H), 0.98-0.91 (m, 2H), 0.75-0.69 (m, 2H).

3-{5-Ethyl-6-[3-(methoxyimino)azetidin-1-yl]pyridin-3-yl}-2-fluorobenzyl carbamimidoylcarbamate (Compound III-851)

CDI 195 mg (1.20 mmol) was added to a DMF (3 mL) solution of 1-{3-ethyl-5-[2-fluoro-3-(hydroxymethyl)phenyl]pyridin-2-yl}azetidin-3-one O-methyloxime 113 mg (0.343 mmol) synthesized in the same manner as in Reference Example 7-45, and the mixture was stirred at room temperature for 1.5 hours. Next, guanidine carbonate 124 mg (0.688 mmol) was added, and the mixture was stirred at room temperature for 1.5 hours. After the completion of the reaction, water was added to the reaction mixture, and the mixture was stirred at room temperature for 30 minutes. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 96.0 mg (0.232 mmol, yield 68%) as a white solid.

Mass spectrum (ESI, m/z):415[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.21-8.19 (m, 1H), 7.62-7.59 (m, 1H), 7.49-7.43 (m, 1H), 7.40-7.36 (m, 1H), 7.30-7.24 (m, 1H), 5.06 (s, 2H), 4.85-4.81 (m, 4H), 3.81 (s, 3H), 2.59 (q, J=7.4 Hz, 2H), 1.20 (t, J=7.5 Hz, 3H).

2-Fluoro-3-{6-[3-(methoxyimino)azetidin-1-yl]-5-{2-[(tetrahydropyran-2-yl)oxy]propan-2-yl}pyridin-3-yl}benzyl carbamimidoylcarbamate (Compound III-1210)

CDI 140 mg (0.863 mmol) was added to a DMF (6 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]-3-{2-[(tetrahydropyran-2-yl)oxy]propan-2-yl}pyridin-2-yl}azetidin-3-one O-methyl oxime 189 mg (0.426 mmol) synthesized in the same manner as in Reference Example 7-46, and the mixture was stirred at room temperature for 6 hours. Next, guanidine carbonate 160 mg (0.888 mmol) was added, and the mixture was stirred at room temperature for 20 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 175 mg (0.331 mmol, yield 78%) as a colorless oil.

1 H-NMR spectrum (400 MHz, DMSO-d 6 ) δ:8.33-8.28 (m, 1H), 7.83-7.76 (m, 1H), 7.54-7.47 (m, 1H), 7.43-7.35 (m, 1H), 7.31-7.21 (m, 1H), 5.06 (s, 2H), 4.93-4.77 (m, 4H), 4.57-4.47 (m, 1H), 3.85-3.69 (m, 4H), 3.44-3.20 (m, 1H), 1.88-1.27 (m, 12H).

2-Fluoro-3-{6-[3-(methoxyimino)azetidin-1-yl]-5-(methoxymethyl)pyridin-3-yl}benzyl carbamimidoylcarbamate (Compound III-1221)

CDI 150 mg (0.925 mmol) was added to a DMF (6 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]-3-(methoxymethyl)pyridin-2-yl}azetidin-3-one O-methyl oxime 157 mg (0.455 mmol) synthesized in the same manner as in Reference Example 7-47, and the mixture was stirred at room temperature for 20 hours. Next, guanidine carbonate 170 mg (0.944 mmol) was added, and the mixture was stirred at room temperature for 16 hours. After the completion of the reaction, water was added to the reaction mixture, and the mixture was stirred at room temperature for 2 hours. Thereafter, the precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 164 mg (0.381 mmol, yield 84%) as a white solid.

Mass spectrum (ESI, m/z):431[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.32-8.25 (m, 1H), 7.77-7.72 (m, 1H), 7.50-7.43 (m, 1H), 7.42-7.35 (m, 1H), 7.30-7.24 (m, 1H), 5.06 (s, 2H), 4.93-4.81 (m, 4H), 4.39 (s, 2H), 3.82 (s, 3H), 3.33 (s, 3H).

2-Fluoro-3-{5-methoxy-6-[3-(methoxyimino)azetidin-1-yl]pyridin-3-yl}benzyl carbamimidoylcarbamate (Compound III-1395)

CDI 153 mg (0.944 mmol) was added to a DMF (3 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]-3-methoxypyridin-2-yl}azetidin-3-one O-methyl oxime 104 mg (0.314 mmol) synthesized in the same manner as in Reference Example 7-48, and the mixture was stirred at room temperature for 1.5 hours. Next, guanidine carbonate 170 mg (0.944 mmol) was added, and the mixture was stirred at room temperature for 1.5 hours. After the completion of the reaction, water was added to the reaction mixture, and the mixture was stirred. The precipitated solid was collected by filtration. Ethyl acetate was added to the obtained solid, and the mixture was stirred at 40° C. Thereafter, the solid was collected by filtration and was purified by silica gel column chromatography (DIOL silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 13 mg (0.031 mmol, yield 10%) as a white solid.

Mass spectrum (ESI, m/z):417[M+l] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:7.91-7.89 (m, 1H), 7.54-7.45 (m, 1H), 7.44-7.35 (m, 1H), 7.34-7.30 (m, 1H), 7.30-7.22 (m, 1H), 5.06 (s, 2H), 4.83-4.71 (m, 4H), 3.83 (s, 3H), 3.81 (s, 3H).

2-Fluoro-3-{2-[4-(methoxyimino)piperidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate (Compound II-205)

CDI 112 mg (0.691 mmol) was added to a DMF (4 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-one O-methyloxime 100 mg (0.303 mmol) synthesized in the same manner as in Reference Example 7-49, and the mixture was stirred at room temperature for 6 hours. Next, guanidine carbonate 109 mg (0.605 mmol) was added, and the mixture was stirred at room temperature for 16 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 117 mg (0.282 mmol, yield 93%) as a white solid.

Mass spectrum (ESI, m/z):416[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (d, J=1.3 Hz, 2H), 7.55-7.47 (m, 1H), 7.43-7.37 (m, 1H), 7.33-7.24 (m, 1H), 5.06 (s, 2H), 3.99-3.85 (m, 4H), 3.76 (s, 3H), 2.60-2.53 (m, 2H), 2.42-2.35 (m, 2H).

2-Fluoro-3-[2-(4-{[(tetrahydropyran-2-yl)oxy]imino}piperidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate (Compound II-249)

CDI 189 mg (0.117 mmol) was added to a DMF (2 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-one O-tetrahydropyran-2-yl oxime 210 mg (0.524 mmol) synthesized in the same manner as in Reference Example 61, and the mixture was stirred at room temperature for 1 hour. Next, guanidine carbonate 190 mg (0.105 mmol) was added, and the mixture was stirred at room temperature for 11 hours. After the completion of the reaction, the reaction mixture was poured to water 20 mL, and the mixture was stirred for 20 minutes. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 151 mg (0.311 mmol, yield 59%) as a white solid.

Mass spectrum (ESI, m/z):486[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.60 (d, J=1.0 Hz, 2H), 7.54-7.48 (m, 1H), 7.44-7.37 (m, 1H), 7.33-7.26 (m, 1H), 5.18-5.14 (m, 1H), 5.07 (s, 2H), 4.01-3.87 (m, 4H), 3.78-3.73 (m, 1H), 3.52-3.43 (m, 1H), 2.71-2.60 (m, 2H), 2.45-2.38 (m, 2H), 1.91-1.37 (m, 6H).

3-{2-[4-(Ethoxyimino)piperidin-1-yl]pyrimidin-5-yl}-2-fluorobenzyl carbamimidoylcarbamate (Compound II-206)

CDI 110 mg (0.678 mmol) was added to a DMF (4 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-one O-ethyl oxime 100 mg (0.290 mmol) synthesized in the same manner as in Reference Example 62-1, and the mixture was stirred at room temperature for 6 hours. Next, guanidine carbonate 113 mg (0.627 mmol) was added, and the mixture was stirred at room temperature for 16 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 114 mg (0.265 mmol, yield 91%) as a white solid.

Mass spectrum (ESI, m/z):430[M+1].

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (d, J=1.0 Hz, 2H), 7.56-7.46 (m, 1H), 7.44-7.36 (m, 1H), 7.32-7.23 (m, 1H), 5.06 (s, 2H), 4.02 (q, J=7.1 Hz, 2H), 3.95-3.89 (m, 4H), 2.60-2.54 (m, 2H), 2.41-2.35 (m, 2H), 1.19 (t, J=7.1 Hz, 3H).

2-Fluoro-3-{2-[4-(isopropoxyimino)piperidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate (Compound II-208)

CDI 79.6 mg (0.491 mmol) was added to a DMF (2 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-one O-isopropyl oxime 77.1 mg (0.215 mmol) synthesized in the same manner as in Reference Example 62-2, and the mixture was stirred at room temperature for 1 hour. Next, guanidine carbonate 80.8 mg (0.448 mmol) was added, and the mixture was stirred at room temperature for 1.5 hours. After the completion of the reaction, methylene chloride and water were added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol=100:0 to 68:32 (V/V)). Ethyl acetate was added to the obtained solid, and the mixture was ultrasonicated. The solid was collected by filtration and was dried under reduced pressure to give the title compound 45.3 mg (0.102 mmol, yield 47%) as a white solid.

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ: 8.59 (d, J=1.4 Hz, 2H), 7.55-7.47 (m, 1H), 7.43-7.37 (m, 1H), 7.32-7.22 (m, 1H), 5.06 (s, 2H), 4.22 (sep, J=6.2 Hz, 1H), 3.98-3.87 (m, 4H), 2.60-2.54 (m, 2H), 2.43-2.36 (m, 2H), 1.18 (d, J=6.2 Hz, 6H).

2-Fluoro-3-{2-[4-(propoxyimino)piperidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate (Compound II-207)

CDI 100 mg (0.617 mmol) was added to a DMF (2.5 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-one O-propyl oxime 88.8 mg (0.248 mmol) synthesized in the same manner as in Reference Example 62-3, and the mixture was stirred at room temperature for 2 hours. Next, guanidine carbonate 100 mg (0.555 mmol) was added, and the mixture was stirred at room temperature for 1.5 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. Toluene was added to the concentrated residue, which was then concentrated under reduced pressure, and this operation was repeated several times. Ethyl acetate was added to the obtained solid, and the mixture was ultrasonicated. The solid was collected by filtration and was dried under reduced pressure to give the title compound 106 mg (0.239 mmol, yield 96%) as a white solid.

Mass spectrum (DUIS, m/z):444[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 ) δ:8.59 (d, J=1.4 Hz, 2H), 7.54-7.47 (m, 1H), 7.43-7.36 (m, 1H), 7.32-7.25 (m, 1H), 5.06 (s, 2H), 3.96-3.89 (m, 6H), 2.61-2.55 (m, 2H), 2.41-2.34 (m, 2H), 1.60 (sext, J=7.3 Hz, 2H), 0.89 (t, J=7.3 Hz, 3H).

3-(2-{4-[(Allyloxy)imino]piperidin-1-yl}pyrimidin-5-yl)-2-fluorobenzyl carbamimidoylcarbamate (Compound II-209)

CDI 100 mg (0.617 mmol) was added to a DMF (2.5 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-one O-allyl oxime 92.7 mg (0.260 mmol) synthesized in the same manner as in Reference Example 63, and the mixture was stirred at room temperature for 2 hours. Next, guanidine carbonate 100 mg (0.555 mmol) was added, and the mixture was stirred at room temperature for 1.5 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. Toluene was added to the concentrated residue, which was then concentrated under reduced pressure, and this operation was repeated several times. Ethyl acetate was added to the obtained solid, and the mixture was ultrasonicated. The solid was collected by filtration and was dried under reduced pressure to give the title compound 107 mg (0.242 mmol, yield 93%) as a white solid.

Mass spectrum (DUIS, m/z):442[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 ) δ:8.60 (d, J=1.4 Hz, 2H), 7.58-7.44 (m, 1H), 7.42-7.33 (m, 1H), 7.31-7.23 (m, 1H), 6.02-5.92 (m, 1H), 5.31-5.24 (m, 1H), 5.21-5.16 (m, 1H), 5.06 (s, 2H), 4.53-4.48 (m, 2H), 3.97-3.89 (m, 4H), 2.64-2.56 (m, 2H), 2.42-2.34 (m, 2H).

2-Fluoro-3-{2-[4-({2-[(tetrahydropyran-2-yl)oxy]ethoxy}imino)piperidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate (Compound II-250)

CDI 35 mg (0.22 mmol) was added to a DMF (1 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-one O-{2-[(tetrahydropyran-2-yl)oxy]ethyl} oxime 38 mg (0.085 mmol) synthesized in the same manner as in Reference Example 65, and the mixture was stirred at room temperature for 1 hour. Next, guanidine carbonate 32 mg (0.18 mmol) was added, and the mixture was stirred at room temperature for 11 hours. After the completion of the reaction, the reaction mixture was poured to water 10 mL, and followed by extraction with a mixed solvent consisting of methylene chloride:methanol=80:20 (V/V). The organic layer was dried over anhydrous magnesium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DIOL silica gel, eluting solvent: ethyl acetate:methanol=100:0 to 90:10 (V/V)) to give the title compound 43 mg (0.081 mmol, yield 95%) as a white solid.

Mass spectrum (ESI, m/z):530[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (s, 2H), 7.54-7.46 (m, 1H), 7.43-7.36 (m, 1H), 7.32-7.25 (m, 1H), 5.06 (s, 2H), 4.61-4.56 (m, 1H), 4.16-4.07 (m, 2H), 3.97-3.87 (m, 4H), 3.85-3.70 (m, 2H), 3.63-3.55 (m, 1H), 3.42-3.37 (m, 1H), 2.63-2.54 (m, 2H), 2.43-2.36 (m, 2H), 1.80-1.36 (m, 6H).

2-Fluoro-3-{2-[4-({3-[(tetrahydropyran-2-yl)oxy]propoxy}imino)piperidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate (Compound II-251)

CDI 69 mg (0.43 mmol) was added to a DMF (4 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-one O-{3-[(tetrahydropyran-2-yl)oxy]propyl} oxime 97 mg (0.21 mmol) synthesized in the same manner as in Reference Example 7-51, and the mixture was stirred at room temperature for 8 hours. Next, guanidine carbonate 77 mg (0.43 mmol) was added, and the mixture was stirred at room temperature for 22 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 92 mg (0.17 mmol, yield 81%) as a white solid.

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (d, J=1.3 Hz, 2H), 7.58-7.47 (m, 1H), 7.44-7.37 (m, 1H), 7.32-7.24 (m, 1H), 5.06 (s, 2H), 4.59-4.51 (m, 1H), 4.11-4.00 (m, 2H), 3.98-3.86 (m, 4H), 3.78-3.64 (m, 2H), 3.47-3.35 (m, 2H), 2.63-2.54 (m, 2H), 2.46-2.36 (m, 2H), 1.97-1.79 (m, 2H), 1.78-1.39 (m, 6H).

2-Fluoro-3-{2-[4-({4-[(tetrahydropyran-2-yl)oxy]butoxy}imino)piperidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate (Compound II-252)

CDI 84.0 mg (0.518 mmol) was added to a DMF (6 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-one O-{4-[(tetrahydropyran-2-yl)oxy]butyl} oxime 123 mg (0.260 mmol) synthesized in the same manner as in Reference Example 7-52, and the mixture was stirred at room temperature for 7 hours. Next, guanidine carbonate 94.0 mg (0.522 mmol) was added, and the mixture was stirred at room temperature for 21 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 112 mg (0.201 mmol, yield 77%) as a white solid.

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (d, J=1.4 Hz, 2H), 7.54-7.47 (m, 1H), 7.43-7.36 (m, 1H), 7.33-7.24 (m, 1H), 5.06 (s, 2H), 4.56-4.52 (m, 1H), 4.02-3.95 (m, 2H), 3.95-3.87 (m, 4H), 3.77-3.69 (m, 1H), 3.68-3.60 (m, 1H), 3.45-3.30 (m, 2H), 2.62-2.55 (m, 2H), 2.42-2.34 (m, 2H), 1.79-1.36 (m, 10H).

2-Fluoro-3-(2-{4-[(2-methoxyethoxy)imino]piperidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-218)

CDI 107 mg (0.660 mmol) was added to a DMF (6 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-one O-(2-methoxyethyl) oxime 124 mg (0.331 mmol) synthesized in the same manner as in Reference Example 7-53, and the mixture was stirred at room temperature for 5 hours. Next, guanidine carbonate 119 mg (0.661 mmol) was added, and the mixture was stirred at room temperature for 16 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 126 mg (0.274 mmol, yield 83%) as a white solid.

Mass spectrum (ESI, m/z):460[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.60 (d, J=1.4 Hz, 2H), 7.53-7.47 (m, 1H), 7.42-7.36 (m, 1H), 7.31-7.25 (m, 1H), 5.06 (s, 2H), 4.11-4.07 (m, 2H), 3.96-3.89 (m, 4H), 3.57-3.52 (m, 2H), 3.26 (s, 3H), 2.63-2.55 (m, 2H), 2.42-2.33 (m, 2H).

3-{2-[4-({2,2-Dimethyl-3-[(tetrahydropyran-2-yl)oxy]propoxy}imino)piperidin-1-yl]pyrimidin-5-yl}-2-fluorobenzyl carbamimidoylcarbamate (Compound II-254)

CDI 100 mg (0.617 mmol) was added to a DMF (3 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-one O-{2,2-dimethyl-3-[(tetrahydropyran-2-yl)oxy]propyl} oxime 131 mg (0.269 mmol) synthesized in the same manner as in Reference Example 7-54, and the mixture was stirred at room temperature for 4 hours. Next, guanidine carbonate 100 mg (0.555 mmol) was added, and the mixture was stirred at room temperature for 16 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol). Ethyl acetate was added to the obtained solid, and the mixture was stirred at 50° C. for 1 hour. Thereafter, the solid was collected by filtration and was dried under reduced pressure to give the title compound 121 mg (0.212 mmol, yield 79%) as a white solid.

Mass spectrum (APCI, m/z):572[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (d, J=1.3 Hz, 2H), 7.53-7.47 (m, 1H), 7.43-7.37 (m, 1H), 7.31-7.26 (m, 1H), 5.06 (s, 2H), 4.54-4.50 (m, 1H), 3.96-3.88 (m, 4H), 3.83 (s, 2H), 3.76-3.66 (m, 1H), 3.47-3.37 (m, 2H), 3.07 (d, J=9.2 Hz, 1H), 2.63-2.56 (m, 2H), 2.43-2.35 (m, 2H), 1.77-1.36 (m, 6H), 0.91 (s, 3H), 0.91 (s, 3H).

2-Fluoro-3-{2-[4-({3-methyl-3-[(tetrahydropyran-2-yl)oxy]butoxy}imino)piperidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate (Compound II-255)

CDI 160 mg (0.987 mmol) was added to a DMF (4 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-one O-{3-methyl-3-[(tetrahydropyran-2-yl)oxy]butyl} oxime 193 mg (0.397 mmol) synthesized in the same manner as in Reference Example 7-55, and the mixture was stirred at room temperature for 14 hours. Next, guanidine carbonate 145 mg (0.805 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. Ethyl acetate was added to the concentrated residue, and the mixture was stirred at 70° C. for 1 hour and at room temperature for 14 hours. The solid was collected by filtration and was dried under reduced pressure to give the title compound 186 mg (0.325 mmol, yield 82%) as a white solid.

Mass spectrum (ESI, m/z):572[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (d, J=1.4 Hz, 2H), 7.53-7.48 (m, 1H), 7.42-7.37 (m, 1H), 7.31-7.26 (m, 1H), 5.06 (s, 2H), 4.77 (dd, J=2.7, 5.5 Hz, 1H), 4.13-4.04 (m, 2H), 3.95-3.88 (m, 4H), 3.84-3.77 (m, 1H), 3.44-3.37 (m, 1H), 2.60-2.52 (m, 2H), 2.43-2.36 (m, 2H), 1.86-1.68 (m, 3H), 1.59-1.32 (m, 5H), 1.19 (s, 3H), 1.18 (s, 3H).

2-Fluoro-3-{2-[4-({2-[(tetrahydropyran-2-yl)oxy]propoxy}imino)piperidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate (Compound II-256)

CDI 49 mg (0.30 mmol) was added to a DMF (1.2 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-one O-{2-[(tetrahydropyran-2-yl)oxy]propyl} oxime 57 mg (0.12 mmol) synthesized in the same manner as in Reference Example 7-56, and the mixture was stirred at room temperature for 1.5 hours. Next, guanidine carbonate 52 mg (0.29 mmol) was added, and the mixture was stirred at room temperature for 4 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride three times. The organic layer was dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. Toluene was added to the concentrated residue, which was then concentrated under reduced pressure, and this operation was repeated several times. Diisopropyl ether was added, and the mixture was ultrasonicated. The solid was collected by filtration and was dried under reduced pressure to give the title compound 49 mg (0.090 mmol, yield 75%) as a white solid.

Mass spectrum (DUIS, m/z):544[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.61-8.57 (m, 2H), 7.54-7.46 (m, 1H), 7.43-7.37 (m, 1H), 7.33-7.24 (m, 1H), 5.06 (s, 2H), 4.79-4.61 (m, 1H), 4.10-3.73 (m, 8H), 3.45-3.34 (m, 1H), 2.63-2.56 (m, 2H), 2.44-2.34 (m, 2H), 1.86-1.36 (m, 6H), 1.17-1.03 (m, 3H).

2-Fluoro-3-{2-[4-({2-methyl-3-[(tetrahydropyran-2-yl)oxy]propoxy}imino)piperidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate (Compound II-257)

CDI 135 mg (0.833 mmol) was added to a DMF (4 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-one O-{2-methyl-3-[(tetrahydropyran-2-yl)oxy]propyl)}oxime 175 mg (0.370 mmol) synthesized in the same manner as in Reference Example 7-57, and the mixture was stirred at room temperature for 1.5 hours. Next, guanidine carbonate 135 mg (0.749 mmol) was added, and the mixture was stirred at room temperature for 16 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol). Ethyl acetate was added to the obtained solid, and the mixture was stirred at 50° C. for 1 hour. Thereafter, the solid was collected by filtration and was dried under reduced pressure to give the title compound 117 mg (0.210 mmol, yield 57%) as a white solid.

Mass spectrum (APCI, m/z):558[M+1l].

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63-8.56 (m, 2H), 7.54-7.47 (m, 1H), 7.42-7.36 (m, 1H), 7.31-7.25 (m, 1H), 5.06 (s, 2H), 4.56-4.51 (m, 1H), 4.02-3.80 (m, 6H), 3.77-3.67 (m, 1H), 3.63-3.37 (m, 2H), 3.34-3.18 (m, 1H), 2.63-2.55 (m, 2H), 2.43-2.36 (m, 2H), 2.11-2.01 (m, 1H), 1.76-1.37 (m, 6H), 0.97-0.87 (m, 3H).

3-[2-(4-{[(2,2-Dimethyl-1,3-dioxan-5-yl)methoxy]imino}piperidin-1-yl)pyrimidin-5-yl]-2-fluorobenzyl carbamimidoylcarbamate (Compound II-259)

CDI 252 mg (1.55 mmol) was added to a DMF (4 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-one O-[(2,2-dimethyl-1,3-dioxan-5-yl)methyl] oxime 345 mg (0.776 mmol) synthesized in the same manner as in Reference Example 7-58, and the mixture was stirred at room temperature for 14 hours. Next, guanidine carbonate 280 mg (1.55 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, water and a saturated aqueous sodium carbonate solution were added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol=100:0 to 88:12 (V/V)). Ethyl acetate 5 mL was added to the obtained solid, and the mixture was stirred at 70° C. for 30 minutes. Thereafter, the solid was collected by filtration and was dried under reduced pressure to give the title compound 393 mg (0.742 mmol, yield 96%) as a white solid.

Mass spectrum (ESI, m/z):530[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (d, J=1.3 Hz, 2H), 7.53-7.47 (m, 1H), 7.44-7.36 (m, 1H), 7.34-7.24 (m, 1H), 5.06 (s, 2H), 4.02 (d, J=7.0 Hz, 2H), 3.97-3.85 (m, 6H), 3.77-3.45 (m, 2H), 2.62-2.55 (m, 2H), 2.43-2.37 (m, 2H), 2.03-1.94 (m, 1H), 1.33 (s, 3H), 1.32 (s, 3H).

2-Fluoro-3-[2-(4-{[(2,2,5-trimethyl-1,3-dioxan-5-yl)methoxy]imino}piperidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate (Compound II-262)

CDI 80 mg (0.49 mmol) was added to a DMF (3 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-one O-[(2,2,5-trimethyl-1,3-dioxan-5-yl)methyl] oxime 97 mg (0.21 mmol) synthesized in the same manner as in Reference Example 7-59, and the mixture was stirred at room temperature for 4 hours. Next, guanidine carbonate 80 mg (0.44 mmol) was added, and the mixture was stirred at room temperature for 15 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: 1,2-dichloroethane:methanol) and (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 83 mg (including impurities) as a white foam.

Mass spectrum (APCI, m/z):544[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (d, J=1.3 Hz, 2H), 7.54-7.47 (m, 1H), 7.42-7.36 (m, 1H), 7.31-7.25 (m, 1H), 5.06 (s, 2H), 4.01 (s, 2H), 3.97-3.89 (m, 4H), 3.61 (d, J=11.7 Hz, 2H), 3.52 (d, J=11.7 Hz, 2H), 2.63-2.57 (m, 2H), 2.42-2.36 (m, 2H), 1.35 (s, 3H), 1.29 (s, 3H), 0.85 (s, 3H).

3-[2-(4-{[(2,2-Dimethyl-1,3-dioxolan-4-yl)methoxy]imino}piperidin-1-yl)pyrimidin-5-yl]-2-fluorobenzyl carbamimidoylcarbamate (Compound II-260)

CDI 100 mg (0.617 mmol) was added to a DMF (6 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-one O-[(2,2-dimethyl-1,3-dioxolan-4-yl)methyl] oxime 130 mg (0.302 mmol) synthesized in the same manner as in Reference Example 7-60, and the mixture was stirred at room temperature for 15 hours. Next, guanidine carbonate 110 mg (0.611 mmol) was added, and the mixture was stirred at room temperature for 4 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 118 mg (0.229 mmol, yield 76%) as a white solid.

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.60 (d, J=1.5 Hz, 2H), 7.55-7.46 (m, 1H), 7.44-7.37 (m, 1H), 7.32-7.24 (m, 1H), 5.06 (s, 2H), 4.33-4.21 (m, 1H), 4.06-3.98 (m, 3H), 3.96-3.89 (m, 4H), 3.67 (dd, J=6.5, 8.3 Hz, 1H), 2.62-2.55 (m, 2H), 2.42-2.36 (m, 2H), 1.33 (s, 3H), 1.28 (s, 3H).

2-[({1-[5-(3-{[(Carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]piperidin-4-ylidene}amino)oxy]ethyl acetate (Compound III-225)

CDI 56 mg (0.35 mmol) was added to a DMF (4 mL) solution of 2-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-ylidene)amino]oxy}ethyl acetate 69 mg (0.17 mmol) synthesized in the same manner as in Reference Example 7-61, and the mixture was stirred at room temperature for 8 hours. Next, guanidine carbonate 62 mg (0.34 mmol) was added, and the mixture was stirred at room temperature for 14 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 62 mg (0.13 mmol, yield 76%) as a white solid.

Mass spectrum (ESI, m/z):488[M+l] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) 5:8.60 (d, J=1.1 Hz, 2H), 7.55-7.46 (m, 1H), 7.44-7.36 (m, 1H), 7.32-7.23 (m, 1H), 5.06 (s, 2H), 4.25-4.13 (m, 4H), 3.96-3.89 (m, 4H), 2.63-2.55 (m, 2H), 2.44-2.36 (m, 2H), 2.03 (s, 3H).

(E/Z)-2-fluoro-3-{2-[3-(methoxyimino)pyrrolidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate (Compound II-92)

CDI 52.4 mg (0.323 mmol) was added to a DMF (2 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}pyrrolidin-3-one O-methyloxime EZ mixture 51.1 mg (0.162 mmol) synthesized in the same manner as in Reference Example 76, and the mixture was stirred at room temperature for 1.5 hours. Next, guanidine carbonate 64.2 mg (0.356 mmol) was added, and the mixture was stirred at room temperature for 13 hours. After the completion of the reaction, the reaction mixture was poured to water 20 mL, and the mixture was stirred at room temperature for 5 minutes. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 41.5 mg (0.103 mmol, yield 64%) as a brown solid.

Mass spectrum (ESI, m/z):402[M+l] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) 5:8.63-8.59 (m, 2H), 7.53-7.46 (m, 1H), 7.43-7.37 (m, 1H), 7.33-7.24 (m, 1H), 5.06 (s, 2H), 4.26-4.20 (m, 2H), 3.87-3.77 (m, 5H), 2.87-2.80 (m, 2H).

2-Fluoro-3-{2-[3-(hydroxyimino)azetidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate (Compound II-1)

1 M tetrabutylammonium fluoride/THF solution 230 μl (0.230 mmol) was added to a THF (5 mL) suspension of 3-[2-(3-{[(tert-butyldimethylsilyl)oxy]imino}azetidin-1-yl)pyrimidin-5-yl]-2-fluorobenzyl carbamimidoylcarbamate 91.6 mg (0.188 mmol) synthesized in the same manner as in Example 4, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, the reaction mixture was concentrated under reduced pressure, and water was added. The precipitated solid was collected by filtration, and was washed with water and diethyl ether. Ethyl acetate was added to the obtained solid, and the mixture was stirred at 75° C. for 30 minutes. Thereafter, the solid was collected by filtration and was purified by silica gel column chromatography (DNH silica gel, eluting solvent: 1,2-dichloroethane:methanol=99:1 to 50:50 (V/V)) to give the title compound 19.9 mg (0.0533 mmol, yield 28%) as a white solid.

Mass spectrum (DUIS, m/z):374[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (s, 2H), 7.57-7.47 (m, 1H), 7.46-7.38 (m, 1H), 7.34-7.24 (m, 1H), 5.06 (s, 2H), 4.88-4.70 (m, 4H).

2-Fluoro-3-(2-{3-[(2-hydroxyethoxy)imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate hydrochloride (Compound II-21 hydrochloride)

At 0° C., 2 M hydrogen chloride/ethanol solution 1 mL (2 mmol) was added to an ethanol (2 mL) suspension of 2-fluoro-3-{2-[3-({2-[(tetrahydropyran-2-yl)oxy]ethoxy}imino)azetidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate 85 mg (0.17 mmol) synthesized in the same manner as in Example 9, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, the reaction mixture was concentrated under reduced pressure. TBME was added to the concentrated residue, and the solid was collected by filtration and was dried under reduced pressure to give the title compound 59 mg (0.13 mmol, yield 76%) as a white solid.

Mass spectrum (APCI, m/z):418[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.64 (d, J=1.1 Hz, 2H), 7.67-7.59 (m, 1H), 7.58-7.50 (m, 1H), 7.40-7.31 (m, 1H), 5.37 (s, 2H), 4.86-4.80 (m, 4H), 4.05 (t, J=5.2 Hz, 2H), 3.61 (t, J=5.2 Hz, 2H).

2-Fluoro-3-(2-{3-[(3-hydroxypropoxy)imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-22)

At room temperature, 2 M hydrogen chloride/ethanol solution 2 mL (4 mmol) was added to 2-fluoro-3-{2-[3-({3-[(tetrahydropyran-2-yl)oxy]propoxy}imino)azetidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate 145 mg (0.281 mmol) synthesized in the same manner as in Example 10, and the mixture was stirred at room temperature for 30 minutes. After the completion of the reaction, the reaction mixture was concentrated under reduced pressure. Methylene chloride, TEA and water were added to the concentrated residue, and the mixture was stirred. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 69 mg (0.16 mmol, yield 57%) as a white solid.

Mass spectrum (ESI, m/z):432[M+1] + .

1H-NMR spectrum (400 MHz, DMSO-d 6 ) δ:8.63 (d, J=1.4 Hz, 2H), 7.56-7.46 (m, 1H), 7.45-7.35 (m, 1H), 7.32-7.25 (m, 1H), 5.06 (s, 2H), 4.85-4.77 (m, 4H), 4.48 (t, J=5.1 Hz, 1H), 4.10 (t, J=6.5 Hz, 2H), 3.52-3.44 (m, 2H), 1.76 (quin, J=6.5 Hz, 2H).

2-Fluoro-3-(2-{3-[(4-hydroxybutoxy)imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-23)

2 M hydrogen chloride/ethanol solution 0.3 mL (0.6 mmol) was added to a methylene chloride (2 mL) suspension of 2-fluoro-3-{2-[3-({4-[(tetrahydropyran-2-yl)oxy]butoxy}imino)azetidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate 90 mg (0.17 mmol) synthesized in the same manner as in Example 11, and the mixture was stirred at room temperature for 1 hour. After the completion of the reaction, the reaction mixture was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: 1,2-dichloroethane:methanol) to give the title compound 63 mg (0.14 mmol, yield 82%) as a white solid.

Mass spectrum (APCI, m/z):446[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.66-8.60 (m, 2H), 7.54-7.47 (m, 1H), 7.45-7.39 (m, 1H), 7.33-7.26 (m, 1H), 5.06 (s, 2H), 4.86-4.77 (m, 4H), 4.07-4.01 (m, 2H), 3.44-3.38 (m, 2H), 1.69-1.59 (m, 2H), 1.53-1.43 (m, 2H).

2-Fluoro-3-[2-(3-{[2-(2-hydroxyethoxy)ethoxy]imino}azetidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate (Compound II-30)

2 M hydrogen chloride/ethanol solution 0.20 mL (0.40 mmol) was added to an ethanol (2 mL) solution of 2-fluoro-3-(2-{3-[(2-{2-[(tetrahydropyran-2-yl)oxy]ethoxy}ethoxy)imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate 70 mg (0.13 mmol) synthesized in the same manner as in Example 13, and the mixture was stirred at room temperature for 1 hour. After the completion of the reaction, TEA 55 μl (0.40 mmol) was added to the reaction mixture, and the reaction mixture was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: 1,2-dichloroethane:methanol). Ethyl acetate was added to the obtained solid, and the mixture was stirred at 50° C. for 1 hour. Thereafter, the solid was collected by filtration and was dried under reduced pressure to give the title compound 52 mg (0.11 mmol, yield 85%) as a white solid.

Mass spectrum (ESI, m/z):462[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 ) δ:8.63 (s, 2H), 7.54-7.47 (m, 1H), 7.45-7.38 (m, 1H), 7.32-7.25 (m, 1H), 5.06 (s, 2H), 4.88-4.76 (m, 4H), 4.64-4.56 (m, 1H), 4.20-4.11 (m, 2H), 3.69-3.60 (m, 2H), 3.55-3.40 (m, 4H).

2-Fluoro-3-[2-(3-{[3-fluoro-2-(hydroxymethyl)propoxy]imino}azetidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate (Compound II-50)

2 M hydrogen chloride/ethanol solution 0.10 mL (0.20 mmol) was added to a methylene chloride (0.10 mL) solution of 2-fluoro-3-(2-{3-[(3-fluoro-2-{[(tetrahydropyran-2-yl)oxy]methyl}propoxy)imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate 52 mg (0.095 mmol) synthesized in the same manner as in Example 21, and the mixture was stirred at room temperature for 1 hour. After the completion of the reaction, TEA and a saturated aqueous sodium hydrogen carbonate solution were added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol=100:0 to 88:12 (V/V)) to give the title compound 25 mg (0.054 mmol, yield 57%) as a white solid.

Mass spectrum (ESI, m/z):464[M+l] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.1 Hz, 2H), 7.54-7.49 (m, 1H), 7.45-7.40 (m, 1H), 7.33-7.28 (m, 1H), 5.07 (s, 2H), 4.87-4.80 (m, 4H), 4.52 (dd, J=5.2 Hz, J=47.4 Hz, 2H), 4.14-4.02 (m, 2H), 3.53-3.44 (m, 2H), 2.25-2.12 (m, 1H).

2-Fluoro-3-(2-{3-[(4-hydroxy-3-methoxybutoxy)imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-51)

At 0° C., 2 M hydrogen chloride/ethanol solution 0.56 mL (1.1 mmol) was added to an ethanol (2 mL) solution of 2-fluoro-3-{2-[3-({3-methoxy-4-[(tetrahydropyran-2-yl)oxy]butoxy}imino)azetidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate 63 mg (0.11 mmol) synthesized in the same manner as in Example 23, and the mixture was stirred at room temperature for 3 hours. After the completion of the reaction, TEA and water were added to the reaction mixture. The precipitated solid was collected by filtration, washed with water and ethyl acetate, and dried under reduced pressure to give the title compound 20 mg (0.042 mmol, yield 38%) as a white solid.

Mass spectrum (ESI, m/z):476[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.69-8.60 (m, 2H), 7.67-7.57 (m, 1H), 7.56-7.47 (m, 1H), 7.42-7.31 (m, 1H), 5.31 (s, 2H), 4.90-4.76 (m, 4H), 4.17-4.05 (m, 2H), 3.41 (d, J=5.0 Hz, 2H), 3.30 (s, 3H), 3.28-3.20 (m, 1H), 1.90-1.78 (m, 1H), 1.76-1.63 (m, 1H).

3-[({1-[5-(3-{[(Carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]-2-(hydroxymethyl)propyl acetate (Compound II-54)

2 M hydrogen chloride/ethanol solution 0.30 mL (0.60 mmol) was added to an ethanol (2 mL) solution of 3-[({1-[5-(3-{[(carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]-2-{[(tetrahydropyran-2-yl)oxy]methyl}propyl acetate 114 mg (0.194 mmol) synthesized in the same manner as in Example 29, and the mixture was stirred at room temperature for 1 hour. After the completion of the reaction, TEA 0.20 mL (1.4 mmol) was added to the reaction mixture, and the mixture was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: 1,2-dichloroethane:methanol). To the oil thus obtained, hexane was added. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 44 mg (0.087 mmol, yield 45%) as a white solid.

Mass spectrum (ESI, m/z):504[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.66-8.60 (m, 2H), 7.54-7.47 (m, 1H), 7.46-7.39 (m, 1H), 7.33-7.26 (m, 1H), 5.06 (s, 2H), 4.87-4.77 (m, 4H), 4.13-3.99 (m, 4H), 3.49-3.42 (m, 2H), 2.19-2.11 (m, 1H), 2.02 (s, 3H).

3-[({1-[5-(3-{[(Carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]-2-(hydroxymethyl)propyl propionate (Compound II-55)

2 M hydrogen chloride/ethanol solution 0.25 mL (0.50 mmol) was added to an ethanol (2 mL) solution of 3-[({1-[5-(3-{[(carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]-2-{[(tetrahydropyran-2-yl)oxy]methyl}propyl propionate 98 mg (0.16 mmol) synthesized in the same manner as in Example 30, and the mixture was stirred at room temperature for 1 hour. After the completion of the reaction, TEA 0.20 mL (1.4 mmol) was added to the reaction mixture, and the mixture was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: 1,2-dichloroethane:methanol). To the oil thus obtained, hexane was added. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 49 mg (0.095 mmol, yield 59%) as a white solid.

Mass spectrum (ESI, m/z):518[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 ) δ:8.67-8.57 (m, 2H), 7.54-7.48 (m, 1H), 7.44-7.37 (m, 1H), 7.33-7.26 (m, 1H), 5.06 (s, 2H), 4.87-4.77 (m, 4H), 4.66 (t, J=5.2 Hz, 1H), 4.14-3.99 (m, 4H), 3.52-3.40 (m, 2H), 2.32 (q, J=7.5 Hz, 2H), 2.19-2.10 (m, 1H), 1.03 (t, J=7.5 Hz, 3H).

3-[({1-[5-(3-{[(Carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]-2-(hydroxymethyl)propyl butyrate (Compound II-56)

2 M hydrogen chloride/ethanol solution 0.25 mL (0.50 mmol) was added to an ethanol (2 mL) solution of 3-[({1-[5-(3-{[(carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]-2-{[(tetrahydropyran-2-yl)oxy]methyl}propyl butyrate 92 mg (0.15 mmol) synthesized in the same manner as in Example 31, and the mixture was stirred at room temperature for 1 hour. After the completion of the reaction, TEA 0.20 mL (1.4 mmol) was added to the reaction mixture, and the mixture was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: 1,2-dichloroethane:methanol) to give the title compound 39 mg (0.073 mmol, yield 49%) as a white foam.

Mass spectrum (ESI, m/z):532[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.3 Hz, 2H), 7.54-7.48 (m, 1H), 7.45-7.40 (m, 1H), 7.33-7.27 (m, 1H), 5.06 (s, 2H), 4.86-4.78 (m, 4H), 4.14-3.99 (m, 4H), 3.48-3.43 (m, 2H), 2.28 (t, J=7.3 Hz, 2H), 2.19-2.12 (m, 1H), 1.55 (sext, J=7.3 Hz, 2H), 0.88 (t, J=7.3 Hz, 3H).

3-[({1-[5-(3-{[(Carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]-2-(hydroxymethyl)propyl isobutyrate (Compound II-57)

At 0° C., 2 M hydrogen chloride/ethanol solution 1 mL (2 mmol) was added to an ethanol (2 mL) solution of 3-[({1-[5-(3-{[(carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]-2-{[(tetrahydropyran-2-yl)oxy]methyl}propyl isobutyrate 0.12 g (0.19 mmol) synthesized in the same manner as in Example 32, and the mixture was stirred at room temperature for 1 hour. After the completion of the reaction, TEA and water were added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 53 mg (0.10 mmol, yield 53%) as a white solid.

Mass spectrum (ESI, m/z):532[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.71-8.57 (m, 2H), 7.56-7.47 (m, 1H), 7.47-7.39 (m, 1H), 7.36-7.25 (m, 1H), 5.09 (s, 2H), 4.86-4.78 (m, 4H), 4.15-4.00 (m, 4H), 3.57-3.35 (m, 2H), 2.54 (sep, J=7.0 Hz, 1H), 2.25-2.08 (m, 1H), 1.09 (d, J=7.0 Hz, 6H).

3-[({1-[5-(3-{[(Carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]-2-(hydroxymethyl)propyl pivalate (Compound II-58)

At 0° C., 2 M hydrogen chloride/ethanol solution 1 mL (2 mmol) was added to an ethanol (4 mL) solution of 3-[({1-[5-(3-{[(carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]-2-{[(tetrahydropyran-2-yl)oxy]methyl}propyl pivalate 0.11 g (0.17 mmol) synthesized in the same manner as in Example 33, and the mixture was stirred at room temperature for 1 hour. After the completion of the reaction, TEA and water were added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 53 mg (0.097 mmol, yield 57%) as a white solid.

Mass spectrum (ESI, m/z):546[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.3 Hz, 2H), 7.56-7.47 (m, 1H), 7.45-7.38 (m, 1H), 7.33-7.26 (m, 1H), 5.06 (s, 2H), 4.87-4.77 (m, 4H), 4.14-3.99 (m, 4H), 3.56-3.39 (m, 2H), 2.26-2.07 (m, 1H), 1.15 (s, 9H).

3-[({1-[5-(3-{[(Carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]-2-(hydroxymethyl)propyl hexanoate (Compound II-59)

2 M hydrogen chloride/ethanol solution 1.26 mL (2.52 mmol) was added to an ethanol (2.5 mL) solution of 3-[({1-[5-(3-{[(carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]-2-{[(tetrahydropyran-2-yl)oxy]methyl}propyl hexanoate 163 mg (0.253 mmol) synthesized in the same manner as in Example 34, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, TEA 0.35 mL (2.5 mmol) was added to the reaction mixture, and the mixture was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 62 mg (0.11 mol, yield 43%) as a light yellow solid.

Mass spectrum (ESI, m/z):560[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.1 Hz, 2H), 7.55-7.47 (m, 1H), 7.46-7.38 (m, 1H), 7.34-7.25 (m, 1H), 5.06 (s, 2H), 4.87-4.77 (m, 4H), 4.15-3.98 (m, 4H), 3.56-3.38 (m, 2H), 2.29 (t, J=7.4 Hz, 2H), 2.21-2.09 (m, 1H), 1.58-1.47 (m, 2H), 1.33-1.20 (m, 4H), 0.85 (t, J=6.8 Hz, 3H).

3-[({1-[5-(3-{[(Carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]-2-(hydroxymethyl)propyl benzoate (Compound II-60)

2 M hydrogen chloride/ethanol solution 1.0 mL (2.0 mmol) was added to an ethanol (1 mL) solution of 3-[({1-[5-(3-{[(carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]-2-{[(tetrahydropyran-2-yl)oxy]methyl}propyl benzoate 102 mg (0.157 mmol) synthesized in the same manner as in Example 35, and the mixture was stirred at room temperature for 30 minutes. After the completion of the reaction, TEA and a saturated aqueous sodium hydrogen carbonate solution were added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol=100:0 to 88:12 (V/V)). Ethyl acetate was added to the crude product thus obtained, and the mixture was stirred at room temperature for 30 minutes. Thereafter, the solid was collected by filtration and was dried under reduced pressure to give the title compound 65.0 mg (0.115 mmol, yield 73%) as a white solid.

Mass spectrum (ESI, m/z):566[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (s, 2H), 8.01-7.96 (m, 2H), 7.68-7.57 (m, 1H), 7.55-7.48 (m, 3H), 7.46-7.39 (m, 1H), 7.34-7.27 (m, 1H), 5.07 (s, 2H), 4.84-4.71 (m, 4H), 4.35 (d, J=5.8 Hz, 2H), 4.25-4.11 (m, 2H), 3.62-3.53 (m, 2H), 2.41-2.30 (m, 1H).

2-Fluoro-3-{5-(2-hydroxypropan-2-yl)-6-[3-(methoxyimino)azetidin-1-yl]pyridin-3-yl}benzyl carbamimidoylcarbamate (Compound III-1134)

At 0° C., 2 M hydrogen chloride/ethanol solution 1.7 mL (3.4 mmol) was added to an ethanol (4 mL) solution of 2-fluoro-3-{6-[3-(methoxyimino)azetidin-1-yl]-5-{2-[(tetrahydropyran-2-yl)oxy]propan-2-yl}pyridin-3-yl}benzyl carbamimidoylcarbamate 175 mg (0.331 mmol) synthesized in the same manner as in Example 48, and the mixture was stirred at room temperature for 1 hour. After the completion of the reaction, TEA and water were added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with a saturated aqueous sodium hydrogen carbonate solution, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 114 mg (0.256 mmol, yield 77%) as a white solid.

Mass spectrum (ESI, m/z):445[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.32-8.25 (m, 1H), 7.80-7.74 (m, 1H), 7.51-7.44 (m, 1H), 7.42-7.35 (m, 1H), 7.34-7.22 (m, 1H), 5.06 (s, 2H), 4.88-4.79 (m, 4H), 3.81 (s, 3H), 1.56 (s, 6H).

2-Fluoro-3-(2-{4-[(2-hydroxyethoxy)imino]piperidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-215)

2 M hydrogen chloride/ethanol solution 1.0 mL (2.0 mmol) was added to 2-fluoro-3-{2-[4-({2-[(tetrahydropyran-2-yl)oxy]ethoxy}imino)piperidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate 26 mg (0.049 mmol) synthesized in the same manner as in Example 57, and the mixture was stirred at room temperature for 20 minutes. After the completion of the reaction, the reaction mixture was washed with a saturated aqueous sodium hydrogen carbonate solution, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure to give the title compound 13 mg (0.029 mmol, yield 59%) as a white solid.

Mass spectrum (ESI, m/z):446[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (d, J=1.3 Hz, 2H), 7.55-7.48 (m, 1H), 7.43-7.36 (m, 1H), 7.33-7.24 (m, 1H), 5.06 (s, 2H), 4.01-3.96 (m, 2H), 3.96-3.90 (m, 4H), 3.63-3.55 (m, 2H), 2.62-2.55 (m, 2H), 2.42-2.33 (m, 2H).

2-Fluoro-3-(2-{4-[(3-hydroxypropoxy)imino]piperidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate hydrochloride (Compound II-216 hydrochloride)

2 M hydrogen chloride/ethanol solution 1 mL (2 mmol) was added to an ethanol (4 mL) suspension of 2-fluoro-3-{2-[4-({3-[(tetrahydropyran-2-yl)oxy]propoxy}imino)piperidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate 92 mg (0.17 mmol) synthesized in the same manner as in Example 58, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, the precipitated solid was collected by filtration, washed with TBME, and dried under reduced pressure to give the title compound 53 mg (0.11 mmol, yield 65%) as a white solid.

Mass spectrum (ESI, m/z):460[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.60 (br s, 2H), 7.69-7.58 (m, 1H), 7.56-7.48 (m, 1H), 7.40-7.30 (m, 1H), 5.36 (s, 2H), 4.04 (t, J=6.5 Hz, 2H), 3.98-3.86 (m, 4H), 3.47 (t, J=6.4 Hz, 2H), 2.62-2.54 (m, 2H), 2.43-2.34 (m, 2H), 1.83-1.68 (m, 2H).

2-Fluoro-3-(2-{4-[(4-hydroxybutoxy)imino]piperidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate hydrochloride (Compound II-217 hydrochloride)

2 M hydrogen chloride/ethanol solution 1 mL (2 mmol) was added to an ethanol (2 mL) solution of 2-fluoro-3-{2-[4-({4-[(tetrahydropyran-2-yl)oxy]butoxy}imino)piperidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate 0.11 g (0.20 mmol) synthesized in the same manner as in Example 59, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, the precipitated solid was collected by filtration, washed with TBME, and dried under reduced pressure to give the title compound 74 mg (0.15 mmol, yield 75%) as a white solid.

Mass spectrum (ESI, m/z):474[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.60 (d, J=1.3 Hz, 2H), 7.66-7.59 (m, 1H), 7.56-7.47 (m, 1H), 7.39-7.31 (m, 1H), 5.36 (s, 2H), 3.98 (t, J=6.6 Hz, 2H), 3.96-3.89 (m, 4H), 3.41 (t, J=6.5 Hz, 2H), 2.62-2.54 (m, 2H), 2.44-2.35 (m, 2H), 1.69-1.41 (m, 4H).

2-Fluoro-3-(2-{4-[(3-hydroxy-2,2-dimethylpropoxy)imino]piperidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-221)

2 M hydrogen chloride/ethanol solution 0.30 mL (0.60 mmol) was added to a methylene chloride (2 mL) suspension of 3-{2-[4-({2,2-dimethyl-3-[(tetrahydropyran-2-yl)oxy]propoxy}imino)piperidin-1-yl]pyrimidin-5-yl}-2-fluorobenzyl carbamimidoylcarbamate 90 mg (0.16 mmol) synthesized in the same manner as in Example 61, and the mixture was stirred at room temperature for 1 hour. After the completion of the reaction, the reaction mixture was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: 1,2-dichloroethane:methanol) to give the title compound 56 mg (0.11 mmol, yield 69%) as a white solid.

Mass spectrum (APCI, m/z):488[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (s, 2H), 7.54-7.47 (m, 1H), 7.43-7.36 (m, 1H), 7.32-7.25 (m, 1H), 5.06 (s, 2H), 3.97-3.87 (m, 4H), 3.78 (s, 2H), 3.18 (s, 2H), 2.63-2.56 (m, 2H), 2.41-2.34 (m, 2H), 0.84 (s, 6H).

2-Fluoro-3-(2-{4-[(3-hydroxy-3-methylbutoxy)imino]piperidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-222)

2 M hydrogen chloride/ethanol solution 1.1 mL (2.2 mmol) was added to an ethanol(0.57 mL) suspension of 2-fluoro-3-{2-[4-({3-methyl-3-[(tetrahydropyran-2-yl)oxy]butoxy}imino)piperidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate 130 mg (0.23 mmol) synthesized in the same manner as in Example 62, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, TEA and a saturated aqueous sodium hydrogen carbonate solution were added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol=100:0 to 88:12 (V/V)) to give the title compound 95 mg (0.20 mmol, yield 87%) as a white solid.

Mass spectrum (ESI, m/z):488[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (d, J=1.3 Hz, 2H), 7.53-7.47 (m, 1H), 7.42-7.37 (m, 1H), 7.31-7.26 (m, 1H), 5.06 (s, 2H), 4.08 (t, J=7.3 Hz, 2H), 3.95-3.88 (m, 4H), 2.59-2.54 (m, 2H), 2.41-2.36 (m, 2H), 1.72 (t, J=7.3 Hz, 2H), 1.12 (s, 6H).

2-Fluoro-3-(2-{4-[(2-hydroxypropoxy)imino]piperidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-223)

2 M hydrogen chloride/ethanol solution 0.4 mL (0.8 mmol) was added to an ethanol (0.6 mL) suspension of 2-fluoro-3-{2-[4-({2-[(tetrahydropyran-2-yl)oxy]propoxy}imino)piperidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate 47 mg (0.086 mmol) synthesized in the same manner as in Example 63, and the mixture was stirred at room temperature for 45 minutes. After the completion of the reaction, the reaction mixture was concentrated under reduced pressure. A saturated aqueous sodium hydrogen carbonate solution 3 mL was added to the concentrated residue, and the mixture was stirred. The precipitated solid was collected by filtration, washed with water and diethyl ether, and dried under reduced pressure. The obtained solid was purified by silica gel column chromatography (DNH silica gel, eluting solvent: 1,2-dichloroethane:methanol=99:1 to 70:30 (V/V)). TBME was added to the crude product thus obtained, and the mixture was ultrasonicated. The solid was collected by filtration and was dried under reduced pressure to give the title compound 12 mg (0.026 mmol, yield 30%) as a white solid.

Mass spectrum (DUIS, m/z):460[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (d, J=1.3 Hz, 2H), 7.54-7.47 (m, 1H), 7.43-7.36 (m, 1H), 7.32-7.25 (m, 1H), 5.06 (s, 2H), 3.96-3.74 (m, 7H), 2.64-2.58 (m, 2H), 2.43-2.33 (m, 2H), 1.06 (d, J=6.1 Hz, 3H).

2-Fluoro-3-(2-{4-[(3-hydroxy-2-methylpropoxy)imino]piperidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-224)

2 M hydrogen chloride/ethanol solution 0.40 mL (0.80 mmol) was added to a methylene chloride (2 mL) suspension of 2-fluoro-3-{2-[4-({2-methyl-3-[(tetrahydropyran-2-yl)oxy]propoxy}imino)piperidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate 100 mg (0.179 mmol) synthesized in the same manner as in Example 64, and the mixture was stirred at room temperature for 1 hour. After the completion of the reaction, the reaction mixture was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: 1,2-dichloroethane:methanol) to give the title compound 65 mg (0.14 mmol, yield 78%) as a white solid.

Mass spectrum (APCI, m/z):474[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (d, J=1.4 Hz, 2H), 7.53-7.47 (m, 1H), 7.43-7.37 (m, 1H), 7.31-7.26 (m, 1H), 5.06 (s, 2H), 4.00-3.88 (m, 5H), 3.83-3.75 (m, 1H), 3.41-3.33 (m, 1H), 3.33-3.24 (m, 1H), 2.62-2.55 (m, 2H), 2.42-2.36 (m, 2H), 1.95-1.85 (m, 1H), 0.87 (d, J=6.9 Hz, 3H).

2-Fluoro-3-[2-(3-{[3-hydroxy-2-(hydroxymethyl)propoxy]imino}azetidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate (Compound II-42)

2 M hydrogen chloride/ethanol solution 2.40 mL (4.80 mmol) was added to a methylene chloride (2 mL) suspension of 3-[2-(3-{[(2,2-dimethyl-1,3-dioxan-5-yl)methoxy]imino}azetidin-1-yl)pyrimidin-5-yl]-2-fluorobenzyl carbamimidoylcarbamate 121 mg (0.241 mmol) synthesized in the same manner as in Example 15, and the mixture was stirred at room temperature for 14 hours. After the completion of the reaction, TEA and water were added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol=100:0 to 90:10 (V/V)). Ethyl acetate 5 mL was added to the crude product thus obtained, and the mixture was stirred at 70° C. for 1 hour. Thereafter, the solid was collected by filtration and was dried under reduced pressure to give the title compound 46.6 mg (0.101 mmol, yield 42%) as a white solid.

Mass spectrum (ESI, m/z):462[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (s, 2H), 7.54-7.48 (m, 1H), 7.45-7.39 (m, 1H), 7.33-7.27 (m, 1H), 5.06 (s, 2H), 4.85-4.78 (m, 4H), 4.04 (d, J=6.4 Hz, 2H), 3.47-3.41 (m, 4H), 1.96-1.88 (m, 1H).

3-(2-{3-[(2,3-Dihydroxypropoxy)imino]azetidin-1-yl}pyrimidin-5-yl)-2-fluorobenzyl carbamimidoylcarbamate (Compound II-43)

2 M hydrogen chloride/ethanol solution 1.0 mL (2.0 mmol) was added to a methylene chloride (1.0 mL) solution of 3-[2-(3-{[(2,2-dimethyl-1,3-dioxolan-4-yl)methoxy)]imino}azetidin-1-yl)pyrimidin-5-yl]-2-fluorobenzyl carbamimidoylcarbamate 100 mg (0.21 mmol) synthesized in the same manner as in Example 16, and the mixture was stirred at room temperature for 14 hours. After the completion of the reaction, TEA and a saturated aqueous sodium carbonate solution were added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol=100:0 to 88:12 (V/V)) two times to give the title compound 16 mg (0.036 mmol, yield 17%) as a white solid.

Mass spectrum (ESI, m/z):448[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.65-8.61 (m, 2H), 7.54-7.47 (m, 1H), 7.45-7.38 (m, 1H), 7.33-7.27 (m, 1H), 5.06 (s, 2H), 4.86-4.79 (m, 4H), 4.07 (dd, J=4.5, 11.2 Hz, 1H), 3.92 (dd, J=6.7, 11.2 Hz, 1H), 3.75-3.60 (m, 1H), 3.36 (d, J=5.6 Hz, 2H).

3-(2-{3-[(3,4-Dihydroxybutoxy)imino]azetidin-1-yl}pyrimidin-5-yl)-2-fluorobenzyl carbamimidoylcarbamate (Compound II-47)

2 M hydrogen chloride/ethanol solution 1 mL (2 mmol) was added to an ethanol (2 mL) suspension of 3-[2-(3-{[2-(2,2-dimethyl-1,3-dioxolan-4-yl)ethoxy]imino}azetidin-1-yl)pyrimidin-5-yl]-2-fluorobenzyl carbamimidoylcarbamate 0.10 g (0.20 mmol) synthesized in the same manner as in Example 19, and the mixture was stirred at room temperature for 4 hours. After the completion of the reaction, TEA and ethanol were added to the reaction mixture. The mixture was filtered, and the filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 22 mg (0.048 mmol, yield 24%) as a white solid.

Mass spectrum (ESI, m/z):462[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) 5:8.63 (br s, 2H), 7.56-7.47 (m, 1H), 7.46-7.39 (m, 1H), 7.34-7.26 (m, 1H), 5.06 (s, 2H), 4.90-4.73 (m, 4H), 4.13 (br t, J=6.5 Hz, 2H), 3.62-3.45 (m, 1H), 3.36-3.21 (m, 2H), 1.92-1.75 (m, 1H), 1.65-1.47 (m, 1H).

3-(6-{3-[(3,4-Dihydroxybutoxy)imino]azetidin-1-yl}-5-fluoropyridin-3-yl)-2-fluorobenzyl carbamimidoylcarbamate (Compound III-123)

2 M hydrogen chloride/ethanol solution 0.71 mL (1.4 mmol) was added to an ethanol (5 mL) solution of 3-[6-(3-{[2-(2,2-dimethyl-1,3-dioxolan-4-yl)ethoxy]imino}azetidin-1-yl)-5-fluoropyridin-3-yl]-2-fluorobenzyl carbamimidoylcarbamate 244 mg (0.471 mmol) synthesized in the same manner as in Example 38, and the mixture was stirred at room temperature for 1 hour. After the completion of the reaction, TEA 0.20 mL (1.4 mmol) was added to the reaction mixture, and the mixture was concentrated under reduced pressure. A methanol-methylene chloride (5:95 (V/V)) mixed solution was added to the concentrated residue, and the precipitated solid was collected by filtration. The filtrate was concentrated under reduced pressure and was purified by silica gel column chromatography (DNH silica gel, eluting solvent: 1,2-dichloroethane:methanol). The solid thus obtained and the solid obtained by the previous filtration were combined, ethyl acetate was added thereto, and the mixture was stirred at 50° C. for 1 hour. Thereafter, the solid was collected by filtration and was dried under reduced pressure to give the title compound 123 mg (0.257 mmol, yield 55%) as a white solid.

Mass spectrum (ESI, m/z):479[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.21-8.13 (m, 1H), 7.78-7.71 (m, 1H), 7.53-7.46 (m, 1H), 7.44-7.38 (m, 1H), 7.32-7.25 (m, 1H), 5.06 (s, 2H), 4.90-4.82 (m, 4H), 4.16-4.09 (m, 2H), 3.58-3.48 (m, 1H), 3.35-3.22 (m, 2H), 1.88-1.78 (m, 1H), 1.59-1.47 (m, 1H).

2-Fluoro-3-{5-fluoro-6-[3-{[3-hydroxy-2-(hydroxymethyl)propoxy]imino}azetidin-1-yl]pyridin-3-yl}benzyl carbamimidoylcarbamate (Compound III-118)

2 M hydrogen chloride/ethanol solution 0.18 mL (0.36 mmol) was added to an ethanol (2 mL) solution of 3-[6-(3-{[(2,2-dimethyl-1,3-dioxan-5-yl)methoxy]imino}azetidin-1-yl)-5-fluoropyridin-3-yl]-2-fluorobenzyl carbamimidoylcarbamate 62 mg (0.12 mmol) synthesized in the same manner as in Example 39, and the mixture was stirred at room temperature for 1 hour. After the completion of the reaction, TEA 50 μl (0.36 mmol) was added to the reaction mixture, and the mixture was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: 1,2-dichloroethane:methanol) to give the title compound 24 mg (0.050 mmol, yield 42%) as a white solid.

Mass spectrum (ESI, m/z):479[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.22-8.13 (m, 1H), 7.79-7.71 (m, 1H), 7.53-7.47 (m, 1H), 7.44-7.38 (m, 1H), 7.32-7.25 (m, 1H), 5.06 (s, 2H), 4.90-4.83 (m, 4H), 4.04 (d, J=6.3 Hz, 2H), 3.47-3.43 (m, 4H), 1.96-1.86 (m, 1H).

2-Fluoro-3-[2-(4-{[3-hydroxy-2-(hydroxymethyl)propoxy]imino}piperidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate (Compound II-230)

2 M hydrogen chloride/ethanol solution 1.41 mL (2.82 mmol) was added to an ethanol (0.3 mL) solution of 3-[2-(4-{[(2,2-dimethyl-1,3-dioxan-5-yl)methoxy]imino}piperidin-1-yl)pyrimidin-5-yl]-2-fluorobenzyl carbamimidoylcarbamate 150 mg (0.283 mmol) synthesized in the same manner as in Example 65, and the mixture was stirred at room temperature for 30 minutes. After the completion of the reaction, TEA and a saturated aqueous sodium hydrogen carbonate solution were added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol=100:0 to 92:8 (V/V)) to give the title compound 112 mg (0.229 mmol, yield 81%) as a white solid.

Mass spectrum (ESI, m/z):490[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (d, J=1.3 Hz, 2H), 7.53-7.47 (m, 1H), 7.42-7.37 (m, 1H), 7.31-7.26 (m, 1H), 5.06 (s, 2H), 3.98 (d, J=6.4 Hz, 2H), 3.96-3.89 (m, 4H), 3.47-3.39 (m, 4H), 2.61-2.55 (m, 2H), 2.43-2.36 (m, 2H), 1.93-1.85 (m, 1H).

2-Fluoro-3-[2-(4-{[3-hydroxy-2-(hydroxymethyl)-2-methylpropoxy]imino}piperidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate (Compound II-232)

2 M hydrogen chloride/ethanol solution 0.30 mL (0.60 mmol) was added to a methylene chloride (2 mL) solution of 2-fluoro-3-[2-(4-{[(2,2,5-trimethyl-1,3-dioxan-5-yl)methoxy]imino}piperidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate 68 mg (0.13 mmol) synthesized in the same manner as in Example 66, and the mixture was stirred at room temperature for 3 hours. After the completion of the reaction, TEA 0.10 mL (0.72 mmol) was added to the reaction mixture, and the mixture was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: 1,2-dichloroethane:methanol). Ethyl acetate was added to the obtained solid, and the mixture was stirred at 50° C. for 1 hour. Thereafter, the solid was collected by filtration and was dried under reduced pressure to give the title compound 28 mg (0.056 mmol, yield 43%) as a white solid.

Mass spectrum (APCI, m/z):504[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (d, J=1.4 Hz, 2H), 7.53-7.47 (m, 1H), 7.42-7.37 (m, 1H), 7.31-7.25 (m, 1H), 5.06 (s, 2H), 3.96-3.89 (m, 4H), 3.86 (s, 2H), 3.28 (s, 4H), 2.61-2.55 (m, 2H), 2.40-2.35 (m, 2H), 0.81 (s, 3H).

3-(2-{4-[(2,3-Dihydroxypropoxy)imino]piperidin-1-yl}pyrimidin-5-yl)-2-fluorobenzyl carbamimidoylcarbamate (Compound II-231)

At 0° C., 2 M hydrogen chloride/ethanol solution 1 mL (2 mmol) was added to 3-[2-(4-{[(2,2-dimethyl-1,3-dioxolan-4-yl)methoxy]imino}piperidin-1-yl)pyrimidin-5-yl]-2-fluorobenzyl carbamimidoylcarbamate 0.11 g (0.21 mmol) synthesized in the same manner as in Example 67, and the mixture was stirred at room temperature for 4 hours. After the completion of the reaction, TEA and ethanol were added to the reaction mixture. The mixture was filtered, and the filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 72 mg (0.15 mmol, yield 71%) as a white solid.

Mass spectrum (ESI, m/z):476[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (br s, 2H), 7.56-7.47 (m, 1H), 7.43-7.36 (m, 1H), 7.32-7.25 (m, 1H), 5.06 (s, 2H), 4.07-3.82 (m, 6H), 3.76-3.64 (m, 1H), 3.41-3.31 (m, 2H), 2.65-2.55 (m, 2H), 2.44-2.35 (m, 2H).

2-Fluoro-3-[2-(3-{[3-hydroxy-2-(methoxymethyl)propoxy]imino}azetidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate (Compound III-45)

Acetic acid 1.0 mL was added to a THF (2 mL)-water (1 mL) solution of 2-fluoro-3-(2-{3-[(3-methoxy-2-{[(tetrahydropyran-2-yl)oxy]methyl}propoxy)imino]azetidin-1l-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate 126 mg (0.225 mmol) synthesized in the same manner as in Example 17, and the mixture was stirred at 60° C. for 15 hours. After the completion of the reaction, the reaction mixture was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 31 mg (0.065 mmol, yield 29%) as a white solid.

Mass spectrum (ESI, m/z):476[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.3 Hz, 2H), 7.55-7.47 (m, 1H), 7.45-7.39 (m, 1H), 7.33-7.26 (m, 1H), 5.07 (s, 2H), 4.90-4.71 (m, 4H), 4.12-3.84 (m, 2H), 3.44 (d, J=5.6 Hz, 2H), 3.39-3.32 (m, 2H), 3.23 (s, 3H), 2.12-2.00 (m, 1H).

2-Fluoro-3-(2-{3-[(3-hydroxy-2-methoxypropoxy)imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-46)

At 0° C., 2 M hydrogen chloride/ethanol solution 1 mL (2 mmol) was added to an ethanol (2 mL) solution of 2-fluoro-3-[2-(3-{[2-methoxy-3-(trityloxy)propoxy]imino}azetidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate 123 mg (0.175 mmol) synthesized in the same manner as in Example 18, and the mixture was stirred at room temperature for 1 hour. After the completion of the reaction, TEA was added to the reaction mixture. The mixture was filtered, and the filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 54 mg (0.12 mmol, yield 69%) as a white solid.

Mass spectrum (ESI, m/z):462[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.3 Hz, 2H), 7.56-7.48 (m, 1H), 7.46-7.39 (m, 1H), 7.34-7.25 (m, 1H), 5.06 (s, 2H), 4.87-4.79 (m, 4H), 4.19-3.96 (m, 2H), 3.48-3.40 (m, 3H), 3.34 (s, 3H).

2-Fluoro-3-(2-{3-[(2-fluoro-3-hydroxypropoxy)imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-40)

At 0° C., 2 M hydrogen chloride/ethanol solution 9 mL (18 mmol) was added to an ethanol (10 mL) suspension of 2-fluoro-3-[2-(3-{[2-fluoro-3-(trityloxy)propoxy]imino}azetidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate 2.45 g (3.54 mmol) synthesized in the same manner as in Example 22, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, TEA (6 mL) was added to the reaction mixture, and the mixture was concentrated under reduced pressure. Water was added to the concentrated residue, and the precipitated solid was collected by filtration. Ethyl acetate was added to the obtained solid, and the mixture was stirred at 50° C. for 1 hour. Thereafter, the solid was collected by filtration and was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 1.20 g (2.67 mmol, yield 75%) as a white solid.

Mass spectrum (ESI, m/z):450[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.64 (s, 2H), 7.57-7.47 (m, 1H), 7.45-7.39 (m, 1H), 7.34-7.25 (m, 1H), 5.06 (s, 2H), 4.93-4.57 (m, 5H), 4.34-4.13 (m, 2H), 3.72-3.49 (m, 2H).

2-Fluoro-3-(5-fluoro-6-{3-[(2-fluoro-3-hydroxypropoxy)imino]azetidin-1-yl}pyridin-3-yl)benzyl carbamimidoylcarbamate (Compound III-116)

At 0° C., 2 M hydrogen chloride/ethanol solution 4.5 mL (9.0 mmol) was added to an ethanol (4 mL) solution of 2-fluoro-3-[5-fluoro-6-(3-{[2-fluoro-3-(trityloxy)propoxy]imino}azetidin-1-yl)pyridin-3-yl]benzyl carbamimidoylcarbamate 631 mg (0.890 mmol) synthesized in the same manner as in Example 40, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, TEA (2 mL) and water were added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with a saturated aqueous sodium hydrogen carbonate solution, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol). Ethyl acetate was added to the crude product thus obtained, and the mixture was stirred at room temperature for 30 minutes. Thereafter, the solid was collected by filtration and was dried under reduced pressure to give the title compound 332 mg (0.712 mmol, yield 80%) as a white solid.

Mass spectrum (ESI, m/z):467[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.21-8.16 (m, 1H), 7.80-7.71 (m, 1H), 7.54-7.45 (m, 1H), 7.44-7.37 (m, 1H), 7.33-7.24 (m, 1H), 5.06 (s, 2H), 4.93-4.85 (m, 4H), 4.84-4.61 (m, 1H), 4.31-4.12 (m, 2H), 3.70-3.50 (m, 2H).

2-Fluoro-3-(2-{3-[(2-hydroxy-3-methoxypropoxy)imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-49)

Lithium hydroxide 4.0 mg (0.17 mmol) was added to a THF (2 mL)-water (0.4 mL) solution of 1-[({1-[5-(3-{[(carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]-3-methoxypropan-2-yl acetate 43 mg (0.085 mmol) synthesized in the same manner as in Example 20, and the mixture was stirred at 50° C. for 2 hours. After the completion of the reaction, acetic acid 10 μl (0.17 mmol) was added to the reaction mixture. The mixture was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 42 mg (including impurities) as a white solid.

Mass spectrum (ESI, m/z):462[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.4 Hz, 2H), 7.58-7.48 (m, 1H), 7.45-7.37 (m, 1H), 7.33-7.27 (m, 1H), 5.06 (s, 2H), 4.86-4.79 (m, 4H), 4.04-3.90 (m, 2H), 3.89-3.81 (m, 1H), 3.37-3.28 (m, 2H), 3.27 (s, 3H).

2-Fluoro-3-{2-[4-(hydroxyimino)piperidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate hydrochloride (Compound II-204 hydrochloride)

2 M hydrogen chloride/ethanol solution 3.0 mL (6.0 mmol) was added to 2-fluoro-3-[2-(4-{[(tetrahydropyran-2-yl)oxy]imino}piperidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate 117 mg (0.241 mmol) synthesized in the same manner as in Example 52, and the mixture was stirred at room temperature for 1 hour. After the completion of the reaction, the precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 106 mg (including impurities) as a white solid.

Mass spectrum (ESI, m/z):402[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.61 (d, J=1.4 Hz, 2H), 7.67-7.58 (m, 1H), 7.55-7.49 (m, 1H), 7.38-7.32 (m, 1H), 5.36 (s, 2H), 3.95-3.89 (m, 4H), 2.60-2.54 (m, 2H), 2.40-2.34 (m, 2H).

3-[6-(3-{[(tert-butyldimethylsilyl)oxy]imino}azetidin-1-yl)-5-fluoropyridin-3-yl]-2-fluorobenzyl carbamimidoylcarbamate (Compound III-138)

CDI 350 mg (2.16 mmol) was added to a DMF (6 mL) solution of 1-{3-fluoro-5-[2-fluoro-3-(hydroxymethyl)phenyl]pyridin-2-yl}azetidin-3-one O-(tert-butyldimethylsilyl) oxime 450 mg (1.07 mmol) synthesized in the same manner as in Reference Example 13-2, and the mixture was stirred at room temperature for 26 hours. Next, guanidine carbonate 580 mg (3.22 mmol) was added, and the mixture was stirred at room temperature for 3 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 422 mg (0.836 mmol, yield 78%) as a white solid.

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.25-8.18 (m, 1H), 7.84-7.75 (m, 1H), 7.58-7.50 (m, 1H), 7.49-7.41 (m, 1H), 7.38-7.28 (m, 1H), 5.10 (s, 2H), 4.95-4.89 (m, 4H), 0.96 (s, 9H), 0.20 (s, 6H).

2-Fluoro-3-{5-fluoro-6-[3-(hydroxyimino)azetidin-1-yl]pyridin-3-yl}benzyl carbamimidoylcarbamate (Compound III-77)

1 M tetrabutylammonium fluoride/THF solution 0.24 mL (0.24 mmol) was added to a THF (2 mL) solution of 3-[6-(3-{[(tert-butyldimethylsilyl)oxy]imino}azetidin-1-yl)-5-fluoropyridin-3-yl]-2-fluorobenzyl carbamimidoylcarbamate 100 mg (0.20 mmol) synthesized in the same manner as in Example 106, and the mixture was stirred at room temperature for 1 hour. After the completion of the reaction, water was added to the reaction mixture, and the mixture was stirred at room temperature. The precipitated solid was collected by filtration. Next, ethyl acetate was added, and the mixture was stirred at room temperature for 3 hours. Thereafter, the solid was collected by filtration and was dried under reduced pressure to give the title compound 35 mg (0.090 mmol, yield 45%) as a white solid.

Mass spectrum (ESI, m/z):391[M+1].

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.17 (s, 1H), 7.81-7.68 (m, 1H), 7.55-7.46 (m, 1H), 7.45-7.37 (m, 1H), 7.33-7.24 (m, 1H), 5.06 (s, 2H), 4.89-4.78 (m, 4H).

tert-Butyl 2-[({1-[5-(3-{[(carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]acetate (Compound II-279)

CDI 82 mg (0.51 mmol) was added to a DMF (3 mL) solution of tert-butyl 2-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-ylidene)amino]oxy}acetate 92 mg (0.23 mmol) synthesized in the same manner as in Reference Example 7-62, and the mixture was stirred at room temperature for 2.5 hours. Next, guanidine carbonate 82 mg (0.46 mmol) was added, and the mixture was stirred at room temperature for 16 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. Toluene was added to the concentrated residue, which was then concentrated under reduced pressure, and this operation was repeated several times. Ethyl acetate was added, and the mixture was ultrasonicated. The solid was collected by filtration and was dried under reduced pressure to give the title compound 88 mg (0.18 mmol, yield 78%) as a white solid.

Mass spectrum (APCI, m/z):488[M+l] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.64 (s, 2H), 7.55-7.47 (m, 1H), 7.45-7.38 (m, 1H), 7.34-7.25 (m, 1H), 5.06 (s, 2H), 4.90-4.80 (m, 4H), 4.54 (s, 2H), 1.44 (s, 9H).

2-[({1-[5-(3-{[(Carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]acetic acid hydrochloride (Compound II-274 hydrochloride)

4 M hydrogen chloride/1,4-dioxane solution 500 μl (2.00 mmol) was added to a methylene chloride (1 mL) suspension of tert-butyl 2-[({1-[5-(3-{[(carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]acetate 70 mg (0.14 mmol) synthesized in the same manner as in Example 108, and the mixture was stirred at room temperature for 20 hours. After the completion of the reaction, the reaction mixture was concentrated under reduced pressure. TBME was added to the concentrated residue, and the mixture was stirred at 50° C. for 1 hour. Thereafter, the solid was collected by filtration and was dried under reduced pressure. 1 N aqueous sodium hydroxide solution 6.00 mL (6.00 mmol) was added to a solution of the solid obtained above in a mixed solvent (2 mL) consisting of methylene chloride:methanol=90:10 (V/V), and the mixture was stirred at room temperature for 14 hours. After the completion of the reaction, the reaction mixture was neutralized by the addition of 1 N hydrochloric acid. The precipitated solid was collected by filtration and was dried under reduced pressure. 4 M hydrogen chloride/1,4-dioxane solution 1.00 mL (1.00 mmol) was added to a suspension of the solid in methylene chloride (1 mL), and the mixture was stirred at room temperature for 1 hour. After the completion of the reaction, the reaction mixture was concentrated under reduced pressure. TBME was added to the concentrated residue, and the mixture was stirred at 50° C. for 1 hour. Thereafter, the solid was collected by filtration and was dried under reduced pressure to give the title compound 25 mg (0.053 mmol, yield 38%) as a light yellow solid.

Mass spectrum (APCI, m/z):432[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.65 (d, J=1.3 Hz, 2H), 7.67-7.60 (m, 1H), 7.57-7.51 (m, 1H), 7.40-7.33 (m, 1H), 5.37 (s, 2H), 4.89-4.82 (m, 4H), 4.59 (s, 2H).

3-[2-(3-{[(Dimethylcarbamoyl)oxy]imino}azetidin-1-yl)pyrimidin-5-yl]-2-fluorobenzyl carbamimidoylcarbamate (Compound II-282)

CDI 41 mg (0.25 mmol) was added to a DMF (2 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-dimethylcarbamoyl oxime 41 mg (0.11 mmol) synthesized in the same manner as in Reference Example 7-63, and the mixture was stirred at room temperature for 16 hours. Next, guanidine carbonate 41 mg (0.23 mmol) was added, and the mixture was stirred at room temperature for 4 hours. After the completion of the reaction, water was added to the reaction mixture, and the mixture was stirred at room temperature. The precipitated solid was collected by filtration. Ethyl acetate was added to the solid, and the mixture was stirred at room temperature for 1 hour. Thereafter, the solid was collected by filtration and was dried under reduced pressure to give the title compound 22 mg (0.050 mmol, yield 45%) as a white solid.

Mass spectrum (ESI, m/z):445[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.65 (d, J=1.1 Hz, 2H), 7.55-7.49 (m, 1H), 7.45-7.39 (m, 1H), 7.33-7.27 (m, 1H), 5.07 (s, 2H), 4.96 (s, 4H), 2.89 (s, 6H).

2-Fluoro-3-[2-(3-{[2-(methylamino)-2-oxoethoxy]imino}azetidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate (Compound II-283)

CDI 60 mg (0.37 mmol) was added to a DMF (4 mL) solution of 2-({[1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-ylidene]amino}oxy)-N-methylacetamide 58 mg (0.16 mmol) synthesized in the same manner as Reference Compound 7-64, and the mixture was stirred at room temperature for 2 hours. Next, guanidine carbonate 60 mg (0.33 mmol) was added, and the mixture was stirred at room temperature for 16 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: 1,2-dichloroethane:methanol). Ethyl acetate was added to the obtained crude product, and the mixture was stirred at room temperature. Thereafter, the solid was collected by filtration and was dried under reduced pressure. Next, methanol was added, and the mixture was stirred. The solid was collected by filtration and was dried under reduced pressure. The solid thus obtained was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol). The crude product obtained was dissolved by the addition of a mixed solvent consisting of methylene chloride:methanol=90:10 (V/V). The solution was concentrated under reduced pressure and the concentrated residue was dried under reduced pressure to give the title compound 13 mg (0.029 mmol, yield 18%) as a white solid.

Mass spectrum (APCI, m/z):445[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 ) δ:8.65 (s, 2H), 7.66 (br d, J=4.3 Hz, 1H), 7.57-7.48 (m, 1H), 7.46-7.38 (m, 1H), 7.33-7.25 (m, 1H), 5.06 (s, 2H), 4.98-4.80 (m, 4H), 4.44 (s, 2H), 2.64 (d, J=4.5 Hz, 3H).

3-(2-{3-[(3-Amino-3-oxopropoxy)imino]azetidin-1-yl}pyrimidin-5-yl)-2-fluorobenzyl carbamimidoylcarbamate (Compound II-284)

CDI 226 mg (1.39 mmol) was added to a DMF (4 ml) solution of 3-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-ylidene)amino]oxy}propanamide 165 mg (0.459 mmol) synthesized in the same manner as in Reference Example 7-65, and the mixture was stirred at room temperature for 3 hours. Next, guanidine carbonate 170 mg (0.944 mmol) was added, and the mixture was stirred at room temperature for 3 hours. After the completion of the reaction, water was added to the reaction mixture, and the mixture was stirred at room temperature for 30 minutes. The precipitated solid was collected by filtration. The obtained solid was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol). Ethyl acetate was added to the crude product thus obtained, and the mixture was stirred at 70° C. for 30 minutes. Thereafter, the solid was collected by filtration and was dried under reduced pressure to give the title compound 69.5 mg (0.156 mmol, yield 34%) as a white solid.

Mass spectrum (ESI, m/z):445[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 ) 5:8.63 (d, J=1.3 Hz, 2H), 7.58-7.48 (m, 1H), 7.45-7.35 (m, 2H), 7.34-7.26 (m, 1H), 6.87 (br s, 1H), 5.06 (s, 2H), 4.92-4.68 (m, 4H), 4.22 (t, J=6.5 Hz, 2H), 2.42 (t, J=6.5 Hz, 2H).

2-Fluoro-3-[2-(3-{[3-(methylamino)-3-oxopropoxy]imino}azetidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate (Compound II-285)

CDI 293 mg (1.81 mmol) was added to a DMF (4 ml) solution of 3-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-ylidene)amino]oxy}-N-methylpropanamide 168 mg (0.450 mmol) synthesized in the same manner as in Reference Example 7-66, and the mixture was stirred at room temperature for 2 hours. Next, guanidine carbonate 165 mg (0.916 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, water and a saturated aqueous sodium carbonate solution were added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol). Ethyl acetate was added to the crude product thus obtained, and the mixture was stirred at 70° C. for 1 hour. Thereafter, the solid was purified by being collected by filtration and being dried under reduced pressure to give the title compound 51.0 mg (0.111 mmol, yield 25%) as a white solid.

Mass spectrum (ESI, m/z):459[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 ) δ:8.63 (d, J=1.4 Hz, 2H), 7.83 (br d, J=4.3 Hz, 1H), 7.54-7.47 (m, 1H), 7.45-7.37 (m, 1H), 7.34-7.24 (m, 1H), 5.06 (s, 2H), 4.90-4.64 (m, 4H), 4.22 (t, J=6.5 Hz, 2H), 2.57 (d, J=4.3 Hz, 3H), 2.43 (t, J=6.5 Hz, 2H).

Ethyl 4-[({1-[5-(3-{[(carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]butanoate (Compound II-281)

CDI 127 mg (0.783 mmol) was added to a DMF (6 mL) solution of ethyl 4-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-ylidene)amino]oxy}butanoate 157 mg (0.390 mmol) synthesized in the same manner as in Reference Example 7-67, and the mixture was stirred at room temperature for 16 hours. Next, guanidine carbonate 141 mg (0.783 mmol) was added, and the mixture was stirred at room temperature for 5 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 153 mg (0.314 mmol, yield 81%) as a white solid.

Mass spectrum (ESI, m/z):488[M+l] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.3 Hz, 2H), 7.55-7.47 (m, 1H), 7.46-7.39 (m, 1H), 7.33-7.27 (m, 1H), 5.06 (s, 2H), 4.87-4.77 (m, 4H), 4.23-3.93 (m, 4H), 2.38 (t, J=7.3 Hz, 2H), 1.92-1.82 (m, 2H), 1.19 (t, J=7.1 Hz, 3H).

4-[({1-[5-(3-{[(Carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]butanoic acid (Compound III-276)

Lithium hydroxide 13 mg (0.543 mmol) was added to a THF (4 mL)-water (1 mL) suspension of ethyl 4-[({1-[5-(3-{[(carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]butanoate 130 mg (0.267 mmol) synthesized in the same manner as in Example 114, and the mixture was stirred at 50° C. for 3 hours. After the completion of the reaction, acetic acid 0.12 ml (2.10 mmol) and water were added to the reaction mixture, and the mixture was stirred at room temperature. The precipitated solid was collected by filtration. The obtained solid was dried under reduced pressure to give the title compound 103 mg (0.224 mmol, yield 84%) as a white solid.

Mass spectrum (ESI, m/z):460[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 ) δ:8.59 (d, J=1.5 Hz, 2H), 7.49-7.37 (m, 2H), 7.31-7.20 (m, 1H), 5.09 (s, 2H), 4.86-4.74 (m, 4H), 4.05 (t, J=6.5 Hz, 2H), 2.27 (t, J=7.3 Hz, 2H), 1.92-1.82 (m, 2H).

2-Fluoro-3-[2-(3-{[4-(methylamino)-4-oxobutoxy]imino}azetidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate (Compound II-290)

CDI 110 mg (0.678 mmol) was added to a DMF (4 mL) solution of 4-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-ylidene)amino]oxy}-N-methylbutanamide 116 mg (0.299 mmol) synthesized in the same manner as Reference Compound 7-68, and the mixture was stirred at room temperature for 30 minutes. Next, guanidine carbonate 110 mg (0.611 mmol) was added, and the mixture was stirred at room temperature for 16 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: 1,2-dichloroethane:methanol). Ethyl acetate was added to the crude product thus obtained, and the mixture was stirred at 50° C. for 1 hour. Thereafter, the solid was collected by filtration and was dried under reduced pressure to give the title compound 88.2 mg (0.187 mmol, yield 63%) as a white solid.

Mass spectrum (APCI, m/z):473[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 ) δ:8.64 (d, J=1.4 Hz, 2H), 7.83-7.68 (m, 1H), 7.55-7.47 (m, 1H), 7.46-7.37 (m, 1H), 7.33-7.25 (m, 1H), 5.06 (s, 2H), 4.91-4.68 (m, 4H), 4.01 (t, J=6.5 Hz, 2H), 2.56 (d, J=4.6 Hz, 3H), 2.13 (t, J=7.5 Hz, 2H), 1.90-1.75 (m, 2H).

3-[2-(3-{[2-(Dimethylamino)ethoxy]imino}azetidin-1-yl)pyrimidin-5-yl]-2-fluorobenzyl carbamimidoylcarbamate (Compound III-293)

CDI 124 mg (0.765 mmol) was added to a DMF (2 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-[2-(dimethylamino)ethyl] oxime 55.0 mg (0.153 mmol) synthesized in the same manner as in Reference Example 7-69, and the mixture was stirred at room temperature for 16 hours. Next, guanidine carbonate 138 mg (0.766 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, water was added to the reaction mixture, and the mixture was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol). The crude product thus obtained was washed with ethyl acetate and water, and was dried under reduced pressure to give the title compound 20.0 mg (0.0450 mmol, yield 29%) as a white solid.

Mass spectrum (ESI, m/z):445[M+1] + .

1 H-NMR (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.3 Hz, 2H), 7.55-7.47 (m, 1H), 7.45-7.39 (m, 1H), 7.34-7.26 (m, 1H), 5.06 (s, 2H), 4.86-4.77 (m, 4H), 4.11 (t, J=6.0 Hz, 2H), 2.57-2.47 (m, 2H), 2.17 (s, 6H).

3-{2-[3-({2-[Benzyl(methyl)amino]ethoxy}imino)azetidin-1-yl]pyrimidin-5-yl}-2-fluorobenzyl carbamimidoylcarbamate (Compound II-294)

CDI 62 mg (0.38 mmol) was added to a DMF (3 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-{2-[benzyl(methyl)amino]ethyl} oxime 83 mg (0.19 mmol) synthesized in the same manner as in Reference Example 7-70, and the mixture was stirred at room temperature for 16 hours. Next, guanidine carbonate 69 mg (0.38 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, water was added to the reaction mixture, and the mixture was stirred at room temperature. The precipitated solid was collected by filtration. The crude product thus obtained was washed with water and ethyl acetate, and was dried under reduced pressure to give the title compound 32 mg (0.061 mmol, yield 32%) as a white solid.

Mass spectrum (ESI, m/z):521[M+1] + .

1 H-NMR (400 MHz, DMSO-d 6 +D 2 O) δ:8.64 (d, J=1.0 Hz, 2H), 7.55-7.48 (m, 1H), 7.46-7.38 (m, 1H), 7.34-7.18 (m, 6H), 5.06 (s, 2H), 4.84-4.75 (m, 4H), 4.14 (t, J=5.8 Hz, 2H), 3.59-3.40 (m, 2H), 2.62 (t, J=6.0 Hz, 2H), 2.20 (s, 3H).

3-(2-{3-[(3-Acetamido-2-{[(tetrahydropyran-2-yl)oxy]methyl}propoxy)imino]azetidin-1-yl}pyrimidin-5-yl)-2-fluorobenzyl carbamimidoylcarbamate (Compound II-362)

CDI 67 mg (0.41 mmol) was added to a DMF (4 mL) solution of N-(3-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-ylidene)amino]oxy}-2-{[(tetrahydropyran-2-yl)oxy]methyl}propyl)acetamide 69 mg (0.14 mmol) synthesized in the same manner as in Reference Example 7-71, and the mixture was stirred at room temperature for 20 hours. Next, guanidine carbonate 50 mg (0.28 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 62 mg (0.11 mmol, yield 79%) as a white foam.

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.1 Hz, 2H), 7.91-7.84 (m, 1H), 7.54-7.47 (m, 1H), 7.45-7.39 (m, 1H), 7.33-7.26 (m, 1H), 5.06 (s, 2H), 4.87-4.78 (m, 4H), 4.57-4.52 (m, 1H), 4.09-3.99 (m, 2H), 3.78-3.58 (m, 2H), 3.48-3.40 (m, 1H), 3.37-3.27 (m, 1H), 3.20-3.06 (m, 2H), 2.18-2.06 (m, 1H), 1.82 (s, 3H), 1.74-1.37 (m, 6H).

3-[2-(3-{[3-Acetamido-2-(hydroxymethyl)propoxy]imino}azetidin-1-yl)pyrimidin-5-yl]-2-fluorobenzyl carbamimidoylcarbamate (Compound II-302)

At 0° C., 2 M hydrogen chloride/ethanol solution 0.50 mL (1.0 mmol) was added to an ethanol (2 mL) solution of 3-(2-{3-[(3-acetamido-2-{[(tetrahydropyran-2-yl)oxy]methyl}propoxy)imino]azetidin-1-yl}pyrimidin-5-yl)-2-fluorobenzyl carbamimidoylcarbamate 62 mg (0.11 mmol) synthesized in the same manner as in Example 119, and the mixture was stirred at room temperature for 1 hour. After the completion of the reaction, TEA was added to the reaction mixture. The mixture was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 41 mg (0.082 mmol, yield 77%) as a white solid.

Mass spectrum (ESI, m/z):503[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.3 Hz, 2H), 7.94-7.84 (m, 1H), 7.53-7.46 (m, 1H), 7.45-7.38 (m, 1H), 7.34-7.27 (m, 1H), 5.06 (s, 2H), 4.86-4.78 (m, 4H), 4.07-3.94 (m, 2H), 3.44-3.35 (m, 2H), 3.17-3.04 (m, 2H), 1.99-1.90 (m, 1H), 1.82 (s, 3H).

3-{(2-[3-({3-(Dimethylamino)-2-[(tetrahydropyran-2-yloxy)methyl]propoxy}imino)azetidin-1-yl]pyrimidin-5-yl}-2-fluorobenzyl carbamimidoylcarbamate (Compound II-363)

CDI 50 mg (0.31 mmol) was added to a DMF (4 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-(3-(dimethylamino)-2-{[(tetrahydropyran-2-yl)oxy]methyl}propyl) oxime 50 mg (0.10 mmol) synthesized in the same manner as in Reference Example 7-72, and the mixture was stirred at room temperature for 19 hours. Next, guanidine carbonate 37 mg (0.21 mmol) was added, and the mixture was stirred at room temperature for 3 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 48 mg (0.084 mmol, yield 84%) as a colorless oil.

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.3 Hz, 2H), 7.55-7.47 (m, 1H), 7.45-7.38 (m, 1H), 7.33-7.26 (m, 1H), 5.06 (s, 2H), 4.87-4.74 (m, 4H), 4.59-4.51 (m, 1H), 4.12-4.01 (m, 2H), 3.78-3.60 (m, 2H), 3.49-3.28 (m, 2H), 2.30-2.19 (m, 2H), 2.18-2.09 (m, 7H), 1.76-1.37 (m, 6H).

3-[2-(3-{[3-(Dimethylamino)-2-(hydroxymethyl)propoxy]imino}azetidin-1-yl)pyrimidin-5-yl]-2-fluorobenzyl carbamimidoylcarbamate (Compound II-303)

At 0° C., 2 M hydrogen chloride/ethanol solution 0.40 mL (0.80 mmol) was added to an ethanol (1 mL) solution of 3-(2-{3-[(3-(dimethylamino)-2-{[(tetrahydropyran-2-yloxy)methyl]propoxy}imino)azetidin-1-yl]pyrimidin-5-yl}-2-fluorobenzyl carbamimidoylcarbamate 48 mg (0.084 mmol) synthesized in the same manner as in Example 121, and the mixture was stirred at room temperature for 0.5 hours. After the completion of the reaction, TEA was added to the reaction mixture. The mixture was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 20 mg (0.041 mmol, yield 49%) as a white solid.

Mass spectrum (ESI, m/z):489[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 ) δ:8.63 (d, J=1.0 Hz, 2H), 7.54-7.46 (m, 1H), 7.45-7.35 (m, 1H), 7.34-7.25 (m, 1H), 5.06 (s, 2H), 4.86-4.77 (m, 4H), 4.57 (br s, 1H), 4.06-3.97 (m, 2H), 3.49-3.41 (m, 2H), 2.27-2.15 (m, 2H), 2.13 (s, 6H), 2.06-1.94 (m, 1H).

3-(2-{3-[(3-Acetamido-2-methoxypropoxy)imino]azetidin-1-yl}pyrimidin-5-yl)-2-fluorobenzyl carbamimidoylcarbamate (Compound II-304)

CDI 40 mg (0.25 mmol) was added to a DMF (4 mL) solution of N-(3-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-ylidene)amino]oxy}-2-methoxypropyl)acetamide 50 mg (0.12 mmol) synthesized in the same manner as in Reference Example 7-73, and the mixture was stirred at room temperature for 15 hours. Next, guanidine carbonate 45 mg (0.25 mmol) was added, and the mixture was stirred at room temperature for 4 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 33 mg (0.066 mmol, yield 55%) as a light yellow solid.

Mass spectrum (ESI, m/z):503[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 ) δ:8.63 (s, 2H), 7.89 (t, J=5.6 Hz, 1H), 7.57-7.46 (m, 1H), 7.46-7.36 (m, 1H), 7.35-7.22 (m, 1H), 5.06 (s, 2H), 4.88-4.77 (m, 4H), 4.13-3.95 (m, 2H), 3.51-3.44 (m, 1H), 3.34 (s, 3H), 3.26-3.08 (m, 2H), 1.82 (s, 3H).

2-Fluoro-3-[2-(3-{[2-(piperidin-1-yl)ethoxy]imino}azetidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate (Compound III-311)

CDI 94 mg (0.58 mmol) was added to a DMF (3 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-[2-(piperidin-1-yl)ethyl] oxime 77 mg (0.19 mmol) synthesized in the same manner as in Reference Example 7-74, and the mixture was stirred at room temperature for 16 hours. Next, guanidine carbonate 104 mg (0.58 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, water was added to the reaction mixture, and the mixture was stirred at room temperature. The precipitated solid was collected by filtration. The crude product thus obtained was washed with water and ethyl acetate, and was dried under reduced pressure to give the title compound 45 mg (0.093 mmol, yield 49%) as a white solid.

Mass spectrum (ESI, m/z):485[M+1] + .

1 H-NMR (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.3 Hz, 2H), 7.55-7.47 (m, 1H), 7.46-7.39 (m, 1H), 7.33-7.26 (m, 1H), 5.06 (s, 2H), 4.87-4.75 (m, 4H), 4.13 (t, J=6.1 Hz, 2H), 2.59-2.47 (m, 2H), 2.45-2.30 (m, 4H), 1.54-1.44 (m, 4H), 1.41-1.32 (m, 2H).

2-Fluoro-3-(2-{3-[(2-morpholinoethoxy)imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-312)

CDI 126 mg (0.777 mmol) was added to a DMF (3 ml) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-(2-morpholinoethyl) oxime 104 mg (0.259 mmol) synthesized in the same manner as in Reference Example 7-75, and the mixture was stirred at room temperature for 14 hours. Next, guanidine carbonate 95.2 mg (0.528 mmol) was added, and the mixture was stirred at room temperature for 1.5 hours. After the completion of the reaction, water was added to the reaction mixture and the mixture was stirred at room temperature. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 103 mg (0.212 mmol, yield 82%) as a white solid.

Mass spectrum (APCI, m/z):487[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.3 Hz, 2H), 7.53-7.48 (m, 1H), 7.45-7.39 (m, 1H), 7.34-7.26 (m, 1H), 5.06 (s, 2H), 4.87-4.76 (m, 4H), 4.15 (t, J=6.0 Hz, 2H), 3.60-3.55 (m, 4H), 2.59 (t, J=6.0 Hz, 2H), 2.46-2.39 (m, 4H).

3-[2-(3-{[2-(Azetidin-1-yl)ethoxy]imino}azetidin-1-yl)pyrimidin-5-yl]-2-fluorobenzyl carbamimidoylcarbamate (Compound II-313)

CDI 35 mg (0.22 mmol) was added to a DMF (2 ml) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-[2-(azetidin-1-yl)ethyl] oxime 27 mg (0.071 mmol) synthesized in the same manner as in Reference Example 7-76, and the mixture was stirred at room temperature for 14 hours. Next, CDI 12 mg (0.074 mmol) was added, and the mixture was stirred at room temperature for 3 hours. Next, guanidine carbonate 26 mg (0.14 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, water and a saturated aqueous sodium carbonate solution were added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 24 mg (0.053 mmol, yield 74%) as a white solid.

Mass spectrum (ESI, m/z):457[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.3 Hz, 2H), 7.55-7.47 (m, 1H), 7.46-7.39 (m, 1H), 7.33-7.28 (m, 1H), 5.07 (s, 2H), 4.85-4.77 (m, 4H), 3.98 (t, J=5.6 Hz, 2H), 3.17-3.10 (m, 4H), 2.60 (t, J=5.6 Hz, 2H), 1.99-1.92 (m, 2H).

3-[2-(3-{[2-(3,3-Difluoroazetidin-1-yl)ethoxy]imino}azetidin-1-yl)pyrimidin-5-yl]-2-fluorobenzyl carbamimidoylcarbamate (Compound II-315)

CDI 22 mg (0.14 mmol) was added to a DMF (2 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-[2-(3,3-difluoroazetidin-1-yl)ethyl] oxime 28 mg (0.069 mmol) synthesized in the same manner as in Reference Example 7-77, and the mixture was stirred at room temperature for 3 hours. Next, guanidine carbonate 25 mg (0.14 mmol) was added, and the mixture was stirred at room temperature for 16 hours. After the completion of the reaction, water was added to the reaction mixture, and the mixture was stirred at room temperature. The precipitated solid was collected by filtration. The crude product thus obtained was washed with water and ethyl acetate, and was dried under reduced pressure to give the title compound 13 mg (0.026 mmol, yield 38%) as a white solid.

Mass spectrum (ESI, m/z):493[M+1] + .

1 H-NMR (400 MHz, DMSO-d 6 +D 2 O) δ:8.66-8.60 (m, 2H), 7.55-7.48 (m, 1H), 7.45-7.38 (m, 1H), 7.33-7.26 (m, 1H), 5.06 (s, 2H), 4.86-4.78 (m, 4H), 4.07 (t, J=5.3 Hz, 2H), 3.62 (t, J=12.5 Hz, 4H), 2.81 (t, J=5.3 Hz, 2H).

2-Fluoro-3-[2-(3-{[2-(3-fluoroazetidin-1-yl)ethoxy]imino}azetidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate (Compound II-314)

CDI 38 mg (0.23 mmol) was added to a DMF (2 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-[2-(3-fluoroazetidin-1-yl)ethyl] oxime 36 mg (0.092 mmol) synthesized in the same manner as in Reference Example 7-78, and the mixture was stirred at room temperature for 3 hours. Next, guanidine carbonate 42 mg (0.23 mmol) was added, and the mixture was stirred at room temperature for 16 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with water, dried over anhydrous magnesium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol). The crude product thus obtained was washed with TBME and was dried under reduced pressure to give the title compound 22 mg (0.046 mmol, yield 50%) as a white solid.

Mass spectrum (ESI, m/z):475[M+1] + .

1 H-NMR (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.4 Hz, 2H), 7.55-7.48 (m, 1H), 7.46-7.39 (m, 1H), 7.33-7.26 (m, 1H), 5.25-5.02 (m, 3H), 4.87-4.76 (m, 4H), 4.03 (t, J=5.5 Hz, 2H), 3.67-3.49 (m, 2H), 3.21-3.07 (m, 2H), 2.71 (t, J=5.5 Hz, 2H).

2-Fluoro-3-[2-(3-{[2-(3-methoxyazetidin-1-yl)ethoxy]imino}azetidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate (Compound II-316)

CDI 40 mg (0.25 mmol) was added to a DMF (2 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-[2-(3-methoxyazetidin-1-yl)ethyl] oxime 39 mg (0.097 mmol) synthesized in the same manner as in Reference Example 7-79, and the mixture was stirred at room temperature for 3 hours. Next, guanidine carbonate 44 mg (0.24 mmol) was added, and the mixture was stirred at room temperature for 18 hours. After the completion of the reaction, water was added to the reaction mixture, and the mixture was stirred at room temperature. The precipitated solid was collected by filtration. The crude product thus obtained was washed with ethyl acetate and was dried under reduced pressure to give the title compound 21 mg (0.043 mmol, yield 44%) as a white solid.

Mass spectrum (ESI, m/z):487[M+1] + .

1 H-NMR (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.1 Hz, 2H), 7.55-7.47 (m, 1H), 7.45-7.38 (m, 1H), 7.34-7.25 (m, 1H), 5.06 (s, 2H), 4.87-4.76 (m, 4H), 4.05-3.88 (m, 3H), 3.62-3.36 (m, 2H), 3.14 (s, 3H), 2.88-2.79 (m, 2H), 2.71-2.62 (m, 2H).

2-Fluoro-3-[2-(3-{[(4-methylmorpholin-2-yl)methoxy]imino}azetidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate (Compound II-317)

CDI 130 mg (0.82 mmol) was added to a DMF (3 ml) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-[(4-methylmorpholin-2-yl)methyl] oxime 110 mg (0.27 mmol) synthesized in the same manner as in Reference Example 7-80, and the mixture was stirred at room temperature for 14 hours. Next, guanidine carbonate 100 mg (0.56 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, water and a saturated aqueous sodium carbonate solution were added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 63 mg (0.13 mmol, yield 47%) as a white solid.

Mass spectrum (APCI, m/z):487[M+1].

1 H-NMR spectrum (400 MHz, DMSO-d 6 ) δ:8.63 (d, J=1.4 Hz, 2H), 7.55-7.47 (m, 1H), 7.45-7.37 (m, 1H), 7.33-7.25 (m, 1H), 5.06 (s, 2H), 4.87-4.77 (m, 4H), 4.08-3.91 (m, 2H), 3.80-3.74 (m, 1H), 3.73-3.65 (m, 1H), 3.54-3.44 (m, 1H), 2.75-2.68 (m, 1H), 2.60-2.55 (m, 1H), 2.17 (s, 3H), 2.00-1.91 (m, 1H), 1.78-1.69 (m, 1H).

3-[2-(3-{[(4-Acetylmorpholin-2-yl)methoxy]imino}azetidin-1-yl)pyrimidin-5-yl]-2-fluorobenzyl carbamimidoylcarbamate (Compound II-318)

CDI 100 mg (0.62 mmol) was added to a DMF (3 ml) solution of 1-[2-({[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-ylidene)amino]oxy}methyl)morpholino]ethanone 88 mg (0.21 mmol) synthesized in the same manner as in Reference Example 7-81, and the mixture was stirred at room temperature for 14 hours. Next, guanidine carbonate 74 mg (0.41 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, water and a saturated aqueous sodium carbonate solution were added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 87 mg (0.17 mmol, yield 81%) as a white solid.

Mass spectrum (APCI, m/z):515[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.3 Hz, 2H), 7.55-7.48 (m, 1H), 7.46-7.38 (m, 1H), 7.33-7.27 (m, 1H), 5.06 (s, 2H), 4.87-4.80 (m, 4H), 4.32-3.98 (m, 3H), 3.90-3.82 (m, 1H), 3.79-3.53 (m, 2H), 3.50-3.32 (m, 1H), 3.22-2.95 (m, 1H), 2.73-2.43 (m, 1H), 2.04-1.99 (m, 3H).

2-Fluoro-3-[2-(3-{[(5-oxotetrahydrofuran-2-yl)methoxy]imino}azetidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate (Compound II-319)

CDI 115 mg (0.709 mmol) was added to a DMF (4 mL) solution of 5-({[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-ylidene)amino]oxy}methyl)dihydrofuran-2(3H)-one 121 mg (0.313 mmol) synthesized in the same manner as Reference Compound 7-82, and the mixture was stirred at room temperature for 1 hour. Next, guanidine carbonate 115 mg (0.638 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, water was added to the reaction mixture, and the mixture was stirred at room temperature. The precipitated solid was collected by filtration. The obtained solid was purified by silica gel column chromatography (DNH silica gel, eluting solvent: 1,2-dichloroethane:methanol). Ethyl acetate was added to the crude product thus obtained, and the mixture was stirred at room temperature. Thereafter, the solid was collected by filtration and was dried under reduced pressure to give the title compound 57.3 mg (0.122 mmol, yield 39%) as a white solid.

Mass spectrum (APCI, m/z):472[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.64 (d, J=1.4 Hz, 2H), 7.54-7.48 (m, 1H), 7.45-7.39 (m, 1H), 7.33-7.27 (m, 1H), 5.06 (s, 2H), 4.88-4.74 (m, 5H), 4.26-4.14 (m, 2H), 2.60-2.43 (m, 2H), 2.32-2.21 (m, 1H), 2.01-1.90 (m, 1H).

3-[({1-[5-(3-{[(Carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]cyclobutyl acetate (Compound II-339)

CDI 53 mg (0.33 mmol) was added to a DMF (3 ml) solution of 3-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-ylidene)amino]oxy}cyclobutyl acetate 65 mg (0.16 mmol) synthesized in the same manner as in Reference Example 7-83, and the mixture was stirred at room temperature for 14 hours. Further, CDI 26 mg (0.16 mmol) was added, and the mixture was stirred at room temperature for 1 hour. Next, guanidine carbonate 59 mg (0.33 mmol) was added, and the mixture was stirred at room temperature for 3 hours. After the completion of the reaction, water was added to the reaction mixture, and the mixture was stirred at room temperature. The precipitated solid was collected by filtration. Ethyl acetate was added to the crude product thus obtained, and the mixture was stirred at 70° C. for 1 hour. Thereafter, the solid was collected by filtration and was dried under reduced pressure to give the title compound 70 mg (0.14 mmol, yield 88%) as a white solid.

Mass spectrum (ESI, m/z):486[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.3 Hz, 2H), 7.55-7.47 (m, 1H), 7.45-7.38 (m, 1H), 7.34-7.26 (m, 1H), 5.09-5.01 (m, 3H), 4.87-4.79 (m, 5H), 2.50-2.44 (m, 2H), 2.40-2.32 (m, 2H), 2.01 (s, 3H).

2-Fluoro-3-(2-{3-[(3-hydroxycyclobutoxy)imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-336)

Lithium hydroxide 6.3 mg (0.26 mmol) was added to a THF (1 ml)-water (1 ml) solution of 3-[({1-[5-(3-{[(carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]cyclobutyl acetate 57 mg (0.12 mmol) synthesized in the same manner as in Example 133, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, a saturated aqueous sodium bicarbonate solution was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 6.0 mg (0.014 mmol, yield 12%) as a white solid.

Mass spectrum (ESI, m/z):444[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) 5:8.63 (d, J=1.0 Hz, 2H), 7.55-7.47 (m, 1H), 7.45-7.38 (m, 1H), 7.34-7.24 (m, 1H), 5.06 (s, 2H), 4.88-4.78 (m, 4H), 4.78-4.70 (m, 1H), 4.33-4.26 (m, 1H), 2.35-2.27 (m, 2H), 2.16-2.08 (m, 2H).

3-(2-{3-[(Benzyloxy)imino]azetidin-1-yl}pyrimidin-5-yl)-2-fluorobenzyl carbamimidoylcarbamate (Compound II-334)

CDI 58 mg (0.36 mmol) was added to a DMF (4 mL) solution of 1-(5-(2-fluoro-3-(hydroxymethyl)phenyl)pyrimidin-2-yl)azetidin-3-one O-benzyl oxime 68 mg (0.18 mmol) synthesized in the same manner as in Reference Example 7-84, and the mixture was stirred at room temperature for 5 hours. Next, guanidine carbonate 65 mg (0.36 mmol) was added, and the mixture was stirred at room temperature for 2 hours and was allowed to stand at room temperature for 4 days. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 66 mg (0.14 mmol, yield 78%) as a white solid.

Mass spectrum (ESI, m/z):464[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.3 Hz, 2H), 7.54-7.48 (m, 1H), 7.45-7.25 (m, 7H), 5.09 (s, 2H), 5.06 (s, 2H), 4.83 (s, 4H).

2-Fluoro-3-[2-(3-{[(4-methoxybenzyl)oxy]imino}azetidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate (Compound II-335)

CDI 110 mg (0.678 mmol) was added to a DMF (4 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-(4-methoxybenzyl) oxime 126 mg (0.309 mmol) synthesized in the same manner as Reference Compound 7-85, and the mixture was stirred at room temperature for 3 hours. Further, CDI 40 mg (0.25 mmol) was added, and the mixture was stirred at room temperature for 17 hours. Next, guanidine carbonate 110 mg (0.678 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, water was added to the reaction mixture, and the mixture was stirred at room temperature. The precipitated solid was collected by filtration. The obtained solid was purified by silica gel column chromatography (DNH silica gel, eluting solvent: 1,2-dichloroethane:methanol). Ethyl acetate was added to the crude product thus obtained, and the mixture was stirred at room temperature. Thereafter, the solid was collected by filtration and was dried under reduced pressure to give the title compound 66.6 mg (0.135 mmol, yield 44%) as a white solid.

Mass spectrum (ESI, m/z):494[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.62 (d, J=1.4 Hz, 2H), 7.54-7.47 (m, 1H), 7.45-7.39 (m, 1H), 7.36-7.26 (m, 3H), 6.96-6.90 (m, 2H), 5.06 (s, 2H), 5.01 (s, 2H), 4.85-4.77 (m, 4H), 3.76 (s, 3H).

2-Fluoro-3-[2-(3-{[(1-methylazetidin-3-yl)oxy]imino}azetidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate (Compound II-342)

CDI 55 mg (0.34 mmol) was added to a DMF (3 ml) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-(1-methylazetidin-3-yl) oxime 40 mg (0.11 mmol) synthesized in the same manner as in Reference Example 7-86, and the mixture was stirred at room temperature for 1 hour. Next, guanidine carbonate 46 mg (0.26 mmol) was added, and the mixture was stirred at room temperature for 1.5 hours. After the completion of the reaction, water and a saturated aqueous sodium carbonate solution were added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol). Ethyl acetate was added to the crude product thus obtained, and the mixture was stirred at 70° C. for 1 hour. Thereafter, the solid was collected by filtration and was dried under reduced pressure to give the title compound 19 mg (0.043 mmol, yield 39%) as a white solid.

Mass spectrum (ESI, m/z):443[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=0.6 Hz, 2H), 7.55-7.47 (m, 1H), 7.45-7.38 (m, 1H), 7.33-7.26 (m, 1H), 5.06 (s, 2H), 4.88-4.79 (m, 4H), 4.75-4.66 (m, 1H), 3.54-3.48 (m, 2H), 3.03-2.97 (m, 2H), 2.25 (s, 3H).

3-[2-(3-{[(1-Acetylazetidin-3-yl)oxy]imino}azetidin-1-yl)pyrimidin-5-yl]-2-fluorobenzyl carbamimidoylcarbamate (Compound II-350)

CDI 89 mg (0.55 mmol) was added to a DMF (3 ml) solution of 1-(3-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-ylidene)amino]oxy}azetidin-1-yl)ethanone 70 mg (0.18 mmol) synthesized in the same manner as in Reference Example 7-87, and the mixture was stirred at room temperature for 5 hours. Next, guanidine carbonate 66 mg (0.37 mmol) was added, and the mixture was stirred at room temperature for 1 hour. After the completion of the reaction, water and a saturated aqueous sodium carbonate solution were added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol). Ethyl acetate was added to the crude product thus obtained, and the mixture was stirred at 70° C. for 1 hour. Thereafter, the solid was collected by filtration and was dried under reduced pressure to give the title compound 18 mg (0.038 mmol, yield 21%) as a white solid.

Mass spectrum (ESI, m/z):487[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.64 (d, J=1.3 Hz, 2H), 7.55-7.47 (m, 1H), 7.46-7.38 (m, 1H), 7.34-7.26 (m, 1H), 5.06 (s, 2H), 5.01-4.91 (m, 1H), 4.90-4.83 (m, 4H), 4.41-4.34 (m, 1H), 4.15-4.06 (m, 2H), 3.83-3.77 (m, 1H), 1.78 (s, 3H).

3-[2-(3-{[(1-Benzylazetidin-3-yl)oxy]imino}azetidin-1-yl)pyrimidin-5-yl]-2-fluorobenzyl carbamimidoylcarbamate (Compound III-344)

CDI 21 mg (0.13 mmol) was added to a DMF (3 ml) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-(1-benzylazetidin-3-yl) oxime 28 mg (0.065 mmol) synthesized in the same manner as in Reference Example 7-88, and the mixture was stirred at room temperature for 3 hours. Further, CDI 11 mg (0.068 mmol) was added, and the mixture was stirred at room temperature for 2 hours. Further, CDI 11 mg (0.068 mmol) was added, and the mixture was stirred at room temperature for 30 minutes. Next, guanidine carbonate 23 mg (0.13 mmol) was added, and the mixture was stirred at room temperature for 1 hour. After the completion of the reaction, water was added to the reaction mixture and the mixture was stirred at room temperature. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 26 mg (0.050 mmol, yield 77%) as a white solid.

Mass spectrum (ESI, m/z):519[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 ) δ:8.64 (br d, J=1.0 Hz, 2H), 7.55-7.46 (m, 1H), 7.45-7.36 (m, 1H), 7.34-7.21 (m, 6H), 5.06 (s, 2H), 4.87-4.75 (m, 5H), 3.60 (s, 2H), 3.55-3.39 (m, 2H), 3.13-3.02 (m, 2H).

2-Fluoro-3-{2-[3-({[1-(2,2,2-trifluoroethyl)azetidin-3-yl]oxy}imino)azetidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate (Compound II-346)

CDI 19 mg (0.12 mmol) was added to a DMF (3 ml) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-[1-(2,2,2-trifluoroethyl)azetidin-3-yl] oxime 25 mg (0.059 mmol) synthesized in the same manner as in Reference Example 7-89, and the mixture was stirred at room temperature for 2 hours. Further, CDI 10 mg (0.062 mmol) was added, and the mixture was stirred at room temperature for 30 minutes. Next, guanidine carbonate 21 mg (0.12 mmol) was added, and the mixture was stirred at room temperature for 40 minutes. After the completion of the reaction, water was added to the reaction mixture and the mixture was stirred at room temperature. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 25 mg (0.049 mmol, yield 83%) as a white solid.

Mass spectrum (ESI, m/z):511[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.64 (d, J=1.3 Hz, 2H), 7.55-7.47 (m, 1H), 7.46-7.38 (m, 1H), 7.34-7.25 (m, 1H), 5.06 (s, 2H), 4.87-4.79 (m, 5H), 3.74-3.63 (m, 2H), 3.37-3.30 (m, 2H), 3.25 (q, J=10.1 Hz, 2H).

2-Fluoro-3-{2-[3-({[1-(methylsulfonyl)azetidin-3-yl]oxy}imino)azetidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate (Compound II-352)

CDI 31 mg (0.19 mmol) was added to a DMF (3 ml) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-[1-(methylsulfonyl)azetidin-3-yl] oxime 27 mg (0.064 mmol) synthesized in the same manner as in Reference Example 7-90, and the mixture was stirred at room temperature for 3 hours. Further, CDI 11 mg (0.068 mmol) was added, and the mixture was stirred at room temperature for 1 hour. Next, guanidine carbonate 24 mg (0.13 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, water and a saturated aqueous sodium carbonate solution were added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 14 mg (0.028 mmol, yield 44%) as a white solid.

Mass spectrum (ESI, m/z):507[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) 5:8.64 (d, J=1.3 Hz, 2H), 7.56-7.47 (m, 1H), 7.46-7.38 (m, 1H), 7.35-7.24 (m, 1H), 5.06 (s, 2H), 5.01-4.93 (m, 1H), 4.90-4.84 (m, 4H), 4.18-4.11 (m, 2H), 3.95-3.89 (m, 2H), 3.04 (s, 3H).

3-[2-(3-{[(1-Ethylazetidin-3-yl)oxy]imino}azetidin-1-yl)pyrimidin-5-yl]-2-fluorobenzyl carbamimidoylcarbamate (Compound II-343)

CDI 42 mg (0.26 mmol) was added to a DMF (3 ml) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-(1-ethylazetidin-3-yl) oxime 30 mg (0.081 mmol) synthesized in the same manner as in Reference Example 7-91, and the mixture was stirred at room temperature for 4 hours. Further, CDI 60 mg (0.37 mmol) was added, and the mixture was stirred at room temperature for 17 hours. Next, guanidine carbonate 29 mg (0.16 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, water and a saturated aqueous sodium carbonate solution were added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 28 mg (0.061 mmol, yield 75%) as a white solid.

Mass spectrum (ESI, m/z):457[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.3 Hz, 2H), 7.54-7.48 (m, 1H), 7.45-7.39 (m, 1H), 7.33-7.27 (m, 1H), 5.06 (s, 2H), 4.87-4.80 (m, 4H), 4.77-4.70 (m, 1H), 3.51-3.45 (m, 2H), 3.02-2.89 (m, 2H), 2.42 (q, J=7.2 Hz, 2H), 0.87 (t, J=7.2 Hz, 3H).

Methyl 3-[({1-[5-(3-{[(carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]azetidin-1-carboxylate (Compound II-351)

CDI 90 mg (0.56 mmol) was added to a DMF (3 ml) solution of methyl 3-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-ylidene)amino]oxy}azetidin-1-carboxylate 56 mg (0.14 mmol) synthesized in the same manner as in Reference Example 7-92, and the mixture was stirred at room temperature for 2.5 hours. Next, guanidine carbonate 50 mg (0.28 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, water was added to the reaction mixture and the mixture was stirred at room temperature. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 49 mg (0.10 mmol, yield 71%) as a white solid.

Mass spectrum (ESI, m/z):487[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 ) δ:8.64 (d, J=1.0 Hz, 2H), 7.56-7.47 (m, 1H), 7.46-7.38 (m, 1H), 7.33-7.26 (m, 1H), 5.06 (s, 2H), 5.01-4.93 (m, 1H), 4.91-4.81 (m, 4H), 4.30-4.08 (m, 2H), 3.98-3.84 (m, 2H), 3.57 (s, 3H).

2-Fluoro-3-(2-{3-[(oxetan-3-yloxy)imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-356)

CDI 50 mg (0.31 mmol) was added to a DMF (4 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-oxetan-3-yl oxime 50 mg (0.15 mmol) synthesized in the same manner as in Reference Example 7-93, and the mixture was stirred at room temperature for 5 hours. Next, guanidine carbonate 60 mg (0.33 mmol) was added, and the mixture was stirred at room temperature for 15 hours. After the completion of the reaction, water was added to the reaction mixture and the mixture was stirred at room temperature. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 30 mg (0.070 mmol, yield 47%) as a white solid.

Mass spectrum (ESI, m/z):430[M+1] + .

1H-NMR spectrum (400 MHz, DMSO-d6+D2O) δ:8.64 (d, J=1.1 Hz, 2H), 7.56-7.48 (m, 1H), 7.46-7.40 (m, 1H), 7.34-7.28 (m, 1H), 5.25-5.18 (m, 1H), 5.07 (s, 2H), 4.91-4.83 (m, 4H), 4.81-4.74 (m, 2H), 4.60-4.54 (m, 2H).

2-{3-[({1-[5-(3-{[(Carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]azetidin-1-yl}ethyl acetate (Compound II-349)

CDI 68 mg (0.42 mmol) was added to a DMF (3 ml) solution of 2-(3-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-ylidene)amino]oxy}azetidin-1-yl)ethyl acetate 43 mg (0.10 mmol) synthesized in the same manner as in Reference Example 7-94, and the mixture was stirred at room temperature for 3 hours. Further, CDI 45 mg (0.28 mmol) was added, and the mixture was stirred at room temperature for 14 hours. Next, guanidine carbonate 36 mg (0.20 mmol) was added, and the mixture was stirred at room temperature for 1 hour. After the completion of the reaction, water and a saturated aqueous sodium carbonate solution were added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 42 mg (0.082 mmol, yield 82%) as a white solid.

Mass spectrum (ESI, m/z):515[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 ) δ:8.64 (d, J=1.3 Hz, 2H), 7.55-7.46 (m, 1H), 7.45-7.37 (m, 1H), 7.33-7.25 (m, 1H), 5.06 (s, 2H), 4.88-4.80 (m, 4H), 4.80-4.72 (m, 1H), 3.96 (t, J=5.5 Hz, 2H), 3.59-3.52 (m, 2H), 3.10-3.04 (m, 2H), 2.65 (t, J=5.5 Hz, 2H), 2.00 (s, 3H).

2-Fluoro-3-{2-[3-({[1-(2-hydroxyethyl)azetidin-3-yl]oxy}imino)azetidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate (Compound II-347)

Lithium hydroxide 4.0 mg (0.167 mmol) was added to a THF (1 ml)-water (1 ml) solution of 2-{3-[({1-[5-(3-{[(carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]azetidin-3-ylidene}amino)oxy]azetidin-1-yl}ethyl acetate 35 mg (0.068 mmol) synthesized in the same manner as in Example 145, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, a saturated aqueous sodium bicarbonate solution was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 4.8 mg (0.010 mmol, yield 15%) as a white solid.

Mass spectrum (ESI, m/z):473[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=0.8 Hz, 2H), 7.55-7.47 (m, 1H), 7.46-7.38 (m, 1H), 7.34-7.26 (m, 1H), 5.06 (s, 2H), 4.90-4.68 (m, 5H), 3.58-3.46 (m, 2H), 3.35 (t, J=6.0 Hz, 2H), 3.12-2.97 (m, 2H), 2.59-2.45 (m, 2H).

2-Fluoro-3-{2-[3-({[1-(2-methoxyethyl)azetidin-3-yl]oxy}imino)azetidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate (Compound II-348)

CDI 76 mg (0.47 mmol) was added to a DMF (3 ml) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-[1-(2-methoxyethyl)azetidin-3-yl] oxime 47 mg (0.12 mmol) synthesized in the same manner as in Reference Example 7-95, and the mixture was stirred at room temperature for 14 hours. Further, CDI 38 mg (0.23 mmol) was added, and the mixture was stirred at room temperature for 1 hour. Next, guanidine carbonate 42 mg (0.23 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, water was added to the reaction mixture and the mixture was stirred at room temperature. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 45 mg (0.093 mmol, yield 78%) as a white solid.

Mass spectrum (ESI, m/z):487[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 ) δ:8.64 (d, J=1.4 Hz, 2H), 7.54-7.47 (m, 1H), 7.45-7.38 (m, 1H), 7.33-7.25 (m, 1H), 5.06 (s, 2H), 4.88-4.79 (m, 4H), 4.76-4.70 (m, 1H), 3.56-3.48 (m, 2H), 3.29 (t, J=5.8 Hz, 2H), 3.21 (s, 3H), 3.07-3.01 (m, 2H), 2.57 (t, J=5.8 Hz, 2H).

2-Fluoro-3-{2-[3-({[1-(2-fluoroethyl)azetidin-3-yl]oxy}imino)azetidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate (Compound II-345)

CDI 81 mg (0.50 mmol) was added to a DMF (2 ml) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}azetidin-3-one O-[1-(2-fluoroethyl)azetidin-3-yl] oxime 39 mg (0.10 mmol) synthesized in the same manner as in Reference Example 7-96, and the mixture was stirred at room temperature for 16 hours. Next, guanidine carbonate 36 mg (0.20 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, water and a saturated aqueous sodium carbonate solution were added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 38 mg (0.080 mmol, yield 80%) as a white solid.

Mass spectrum (ESI, m/z):475[M+1] + .

1H-NMR spectrum (400 MHz, DMSO-d 6 ) δ:8.64 (br s, 2H), 7.54-7.47 (m, 1H), 7.45-7.37 (m, 1H), 7.34-7.25 (m, 1H), 5.06 (s, 2H), 4.88-4.74 (m, 5H), 4.50-4.28 (m, 2H), 3.62-3.52 (m, 2H), 3.16-3.06 (m, 2H), 2.85-2.61 (m, 2H).

Ethyl 3-[({1-[5-(3-{[(carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]piperidin-4-ylidene}amino)oxy]propanoate (Compound II-507)

CDI 27 mg (0.17 mmol) was added to a DMF (2 mL) solution of ethyl 3-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-ylidene)amino]oxy}propanoate 34 mg (0.082 mmol) synthesized in the same manner as in Reference Example 7-97, and the mixture was stirred at room temperature for 16 hours. Next, guanidine carbonate 30 mg (0.17 mmol) was added, and the mixture was stirred at room temperature for 6 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 20 mg (0.040 mmol, yield 49%) as a white solid.

Mass spectrum (ESI, m/z):502[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) 5:8.59 (d, J=1.3 Hz, 2H), 7.54-7.47 (m, 1H), 7.43-7.36 (m, 1H), 7.31-7.25 (m, 1H), 5.06 (s, 2H), 4.20 (t, J=6.1 Hz, 2H), 4.08 (q, J=7.1 Hz, 2H), 3.95-3.87 (m, 4H), 2.66-2.60 (m, 2H), 2.57-2.52 (m, 2H), 2.43-2.33 (m, 2H), 1.18 (t, J=7.1 Hz, 3H).

3-(2-{4-[(3-Amino-3-oxopropoxy)imino]piperidin-1-yl}pyrimidin-5-yl)-2-fluorobenzyl carbamimidoylcarbamate (Compound II-511)

CDI 59 mg (0.37 mmol) was added to a DMF (4 ml) solution of 3-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-ylidene)amino]oxy}propanamide 65 mg (0.17 mmol) synthesized in the same manner as in Reference Example 7-98, and the mixture was stirred at room temperature for 3 hours. Next, guanidine carbonate 61 mg (0.34 mmol) was added, and the mixture was stirred at room temperature for 1 hour. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol). Ethyl acetate was added to the crude product thus obtained, and the mixture was stirred at 70° C. for 30 minutes. Thereafter, the solid was collected by filtration and was dried under reduced pressure to give the title compound 15 mg (0.031 mmol, yield 18%) as a white solid.

Mass spectrum (ESI, m/z):473[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 ) δ:8.59 (d, J=1.4 Hz, 2H), 7.54-7.46 (m, 1H), 7.42-7.32 (m, 2H), 7.30-7.24 (m, 1H), 6.83 (br s, 1H), 5.06 (s, 2H), 4.16 (t, J=6.6 Hz, 2H), 3.96-3.88 (m, 4H), 2.58-2.53 (m, 2H), 2.42-2.32 (m, 4H).

2-Fluoro-3-[2-(4-{[3-(methylamino)-3-oxopropoxy]imino}piperidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate (Compound II-512)

CDI 65 mg (0.40 mmol) was added to a DMF (4 mL) solution of a crude product 80 mg synthesized in the same manner as in Reference Example 7-99 which included 3-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-ylidene)amino]oxy}-N-methylpropanamide, and the mixture was stirred at room temperature for 3 hours. Next, guanidine carbonate 72 mg (0.40 mmol) was added, and the mixture was stirred at room temperature for 17 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: 1,2-dichloroethane:methanol) to give the title compound 32 mg (0.066 mmol) as a white solid.

Mass spectrum (ESI, m/z):487[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (s, 2H), 7.53-7.47 (m, 1H), 7.42-7.36 (m, 1H), 7.31-7.25 (m, 1H), 5.06 (s, 2H), 4.16 (t, J=6.5 Hz, 2H), 3.96-3.87 (m, 4H), 2.60-2.53 (m, 5H), 2.44-2.34 (m, 4H).

Ethyl 4-[({1-[5-(3-{[(carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]piperidin-4-ylidene}amino)oxy]butanoate (Compound II-508)

CDI 85 mg (0.52 mmol) was added to a DMF (4 mL) solution of ethyl 4-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-ylidene)amino]oxy}butanoate 0.11 g (0.26 mmol) synthesized in the same manner as in Reference Example 7-100, and the mixture was stirred at room temperature for 7 hours. Next, guanidine carbonate 95 mg (0.53 mmol) was added, and the mixture was stirred at room temperature for 16 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 98 mg (0.19 mmol, yield 73%) as a white solid.

Mass spectrum (ESI, m/z):516[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (d, J=1.4 Hz, 2H), 7.55-7.47 (m, 1H), 7.43-7.36 (m, 1H), 7.32-7.23 (m, 1H), 5.06 (s, 2H), 4.05 (q, J=7.2 Hz, 2H), 3.98 (t, J=6.4 Hz, 2H), 3.95-3.89 (m, 4H), 2.61-2.54 (m, 2H), 2.44-2.32 (m, 4H), 1.90-1.81 (m, 2H), 1.18 (t, J=7.2 Hz, 3H).

4-[({1-[5-(3-{[(Carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]piperidin-4-ylidene}amino)oxy]butanoic acid (Compound II-505)

Lithium hydroxide 11 mg (0.46 mmol) was added to a THF (6 mL)-water (2 mL) suspension of ethyl 4-[({1-[5-(3-{[(carbamimidoylcarbamoyl)oxy]methyl}-2-fluorophenyl)pyrimidin-2-yl]piperidin-4-ylidene}amino)oxy]butanoate 85 mg (0.17 mmol) synthesized in the same manner as in Example 152, and the mixture was stirred at 50° C. for 6 hours. After the completion of the reaction, acetic acid 0.1 ml (1.7 mmol) and water were added to the reaction mixture, and the mixture was stirred at room temperature. The precipitated solid was collected by filtration. The obtained solid was dried under reduced pressure to give the title compound 65 mg (0.13 mmol, yield 77%) as a white solid.

Mass spectrum (ESI, m/z):488[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (d, J=1.4 Hz, 2H), 7.54-7.47 (m, 1H), 7.43-7.37 (m, 1H), 7.32-7.26 (m, 1H), 5.06 (s, 2H), 3.98 (t, J=6.4 Hz, 2H), 3.95-3.88 (m, 4H), 2.61-2.55 (m, 2H), 2.43-2.33 (m, 2H), 2.28 (t, J=7.3 Hz, 2H), 1.88-1.77 (m, 2H).

3-[2-(4-{[3-(Dimethylamino)-3-oxopropoxy]imino}piperidin-1-yl)pyrimidin-5-yl]-2-fluorobenzyl carbamimidoylcarbamate (Compound II-513)

CDI 117 mg (0.722 mmol) was added to a DMF (6 mL) solution of 3-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-ylidene)amino]oxy}-N,N-dimethylpropanamide 150 mg (0.361 mmol) synthesized in the same manner as in Reference Example 7-101, and the mixture was stirred at room temperature for 7 hours. Next, guanidine carbonate 130 mg (0.722 mmol) was added, and the mixture was stirred at room temperature for 14 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 123 mg (0.246 mmol, yield 68%) as a white solid.

Mass spectrum (ESI, m/z):501[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (d, J=1.4 Hz, 2H), 7.54-7.47 (m, 1H), 7.43-7.36 (m, 1H), 7.32-7.25 (m, 1H), 5.06 (s, 2H), 4.19 (t, J=6.7 Hz, 2H), 3.97-3.87 (m, 4H), 2.96 (s, 3H), 2.81 (s, 3H), 2.65 (t, J=6.7 Hz, 2H), 2.58-2.53 (m, 2H), 2.42-2.36 (m, 2H).

3-(2-{4-[(2-Acetamidoethoxy)imino]piperidin-1-yl}pyrimidin-5-yl)-2-fluorobenzyl carbamimidoylcarbamate (Compound II-519)

CDI 30 mg (0.19 mmol) was added to a DMF (4 mL) solution of N-(2-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-ylidene)amino]oxy}ethyl)acetamide 37 mg (0.092 mmol) synthesized in the same manner as in Reference Example 7-102, and the mixture was stirred at room temperature for 7 hours. Next, guanidine carbonate 34 mg (0.19 mmol) was added, and the mixture was stirred at room temperature for 16 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 37 mg (0.076 mmol, yield 83%) as a white solid.

Mass spectrum (ESI, m/z):487[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.60 (d, J=1.4 Hz, 2H), 7.56-7.47 (m, 1H), 7.44-7.37 (m, 1H), 7.32-7.25 (m, 1H), 5.06 (s, 2H), 4.01-3.89 (m, 6H), 3.33-3.26 (m, 2H), 2.64-2.56 (m, 3H), 2.43-2.36 (m, 2H), 1.82 (s, 3H).

2-Fluoro-3-[2-(4-{[2-(N-methylacetamido)ethoxy]imino}piperidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate (Compound III-520)

CDI 75 mg (0.46 mmol) was added to a DMF (4 mL) solution of N-(2-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-ylidene)amino]oxy}ethyl)-N-methylacetamide 95 mg (0.23 mmol) synthesized in the same manner as in Reference Example 7-103, and the mixture was stirred at room temperature for 7 hours. Next, guanidine carbonate 83 mg (0.46 mmol) was added, and the mixture was stirred at room temperature for 14 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 73 mg (0.15 mmol, yield 65%) as a white solid.

Mass spectrum (ESI, m/z):501[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.60 (d, J=1.4 Hz, 2H), 7.54-7.47 (m, 1H), 7.43-7.36 (m, 1H), 7.32-7.25 (m, 1H), 5.06 (s, 2H), 4.17-4.02 (m, 2H), 3.97-3.88 (m, 4H), 3.59-3.47 (m, 2H), 3.02-2.77 (m, 3H), 2.62-2.54 (m, 2H), 2.42-2.35 (m, 2H), 2.00-1.96 (m, 3H).

2-Fluoro-3-[2-(4-{[2-(N-methylmethylsulfonamido)ethoxy]imino}piperidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate hydrochloride (Compound II-522 hydrochloride)

CDI 59 mg (0.36 mmol) was added to a DMF (2.5 mL) solution of N-(2-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-ylidene)amino]oxy}ethyl)-N-methylmethanesulfonamide 55 mg (0.12 mmol) synthesized in the same manner as in Reference Example 7-104, and the mixture was stirred at room temperature for 17 hours. Next, guanidine carbonate 66 mg (0.37 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, water was added to the reaction mixture, and the mixture was stirred at room temperature. The precipitated solid was collected by filtration and was washed with TBME. The crude product thus obtained was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol). The crude product obtained was dissolved into 2 N HCl/ethanol, and the solution was concentrated under reduced pressure. The crude product thus obtained was washed with ethyl acetate and was dried under reduced pressure to give the title compound 51 mg (0.089 mmol, yield 74%) as a white solid.

Mass spectrum (ESI, m/z):537[M+1] + .

1 H-NMR (400 MHz, DMSO-d 6 +D 2 O) δ:8.61 (d, J=1.3 Hz, 2H), 7.67-7.59 (m, 1H), 7.55-7.49 (m, 1H), 7.39-7.32 (m, 1H), 5.36 (s, 2H), 4.16-4.08 (m, 2H), 3.98-3.89 (m, 4H), 3.38-3.30 (m, 2H), 2.88 (s, 3H), 2.81 (s, 3H), 2.63-2.56 (m, 2H), 2.44-2.38 (m, 2H).

3-{2-[4-({2-[N-(tert-butoxycarbonyl)methylsulfonamido]ethoxy}imino)piperidin-1-yl]pyrimidin-5-yl}-2-fluorobenzyl carbamimidoylcarbamate (Compound II-570)

CDI 78 mg (0.48 mmol) was added to a DMF (3 mL) solution of tert-butyl (2-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-ylidene)amino]oxy}ethyl)(methylsulfonyl)carbamate 86 mg (0.16 mmol) synthesized in the same manner as in Reference Example 7-105, and the mixture was stirred at room temperature for 16 hours. Next, guanidine carbonate 86 mg (0.48 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, a saturated aqueous ammonium chloride solution was added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous magnesium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 62 mg (0.10 mmol, yield 63%) as a colorless oil.

Mass spectrum (ESI, m/z):623[M+1] + .

1 H-NMR (400 MHz, DMSO-d 6 +D 2 O) δ:8.60 (d, J=1.3 Hz, 2H), 7.55-7.47 (m, 1H), 7.43-7.36 (m, 1H), 7.33-7.23 (m, 1H), 5.06 (s, 2H), 4.14-4.08 (m, 2H), 3.97-3.82 (m, 6H), 3.34 (s, 3H), 2.62-2.46 (m, 2H), 2.43-2.35 (m, 2H), 1.47 (s, 9H).

2-Fluoro-3-[2-(4-{[2-(methylsulfonamido)ethoxy]imino}piperidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate (Compound II-521)

2 M hydrogen chloride/ethanol solution (2 mL) was added to 3-{2-[4-({2-[N-(tert-butoxycarbonyl)methylsulfonamido]ethoxy}imino)piperidin-1-yl]pyrimidin-5-yl}-2-fluorobenzyl carbamimidoylcarbamate 62 mg (0.10 mmol) synthesized in the same manner as in Example 158, and the mixture was stirred at room temperature for 22 hours. After the completion of the reaction, the reaction mixture was concentrated under reduced pressure. The concentrated residue was washed with TBME and was filtered. The crude product thus obtained was dissolved into ethanol and was neutralized with triethylamine. The resultant solution was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 23 mg (0.044 mmol, yield 44%) as a white solid.

Mass spectrum (ESI, m/z):523[M+].

1 H-NMR (400 MHz, DMSO-d 6 +D 2 O) δ:8.63-8.57 (m, 2H), 7.55-7.47 (m, 1H), 7.44-7.36 (m, 1H), 7.33-7.25 (m, 1H), 5.06 (s, 2H), 4.03 (t, J=5.7 Hz, 2H), 3.97-3.89 (m, 4H), 3.21 (t, J=5.7 Hz, 2H), 2.91 (s, 3H), 2.65-2.58 (m, 2H), 2.44-2.36 (m, 2H).

3-[2-(4-{[2-(Dimethylamino)ethoxy]imino}piperidin-1-yl)pyrimidin-5-yl]-2-fluorobenzyl carbamimidoylcarbamate (Compound II-517)

CDI 28 mg (0.17 mmol) was added to a DMF (1.5 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-one O-[2-(dimethylamino)ethyl] oxime 14 mg (0.036 mmol) synthesized in the same manner as in Reference Example 7-106, and the mixture was stirred at room temperature for 3 hours. Next, guanidine carbonate 31 mg (0.17 mmol) was added, and the mixture was stirred at room temperature for 1 hour. After the completion of the reaction, water was added to the reaction mixture, and the mixture was stirred at room temperature. The precipitated solid was collected by filtration. The crude product thus obtained was washed with TBME and was dried under reduced pressure to give the title compound 14 mg (0.030 mmol, yield 83%) as a white solid.

Mass spectrum (ESI, m/z):473[M+1] + .

1 H-NMR (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (d, J=1.4 Hz, 2H), 7.55-7.46 (m, 1H), 7.43-7.37 (m, 1H), 7.33-7.24 (m, 1H), 5.06 (s, 2H), 4.06 (t, J=6.0 Hz, 2H), 3.96-3.88 (m, 4H), 2.63-2.45 (m, 4H), 2.42-2.36 (m, 2H), 2.17 (s, 6H).

3-{2-[4-({2-[(tert-Butoxycarbonyl)(methyl)amino]ethoxy}imino)piperidin-1-yl]pyrimidin-5-yl}-2-fluorobenzyl carbamimidoylcarbamate (Compound II-571)

CDI 71.0 mg (0.438 mmol) was added to a DMF (2 mL) solution of tert-butyl (2-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-ylidene)amino]oxy}ethyl)(methyl)carbamate 103 mg (0.218 mmol) synthesized in the same manner as in Reference Example 7-107, and the mixture was stirred at room temperature for 2 hours. Next, guanidine carbonate 78.0 mg (0.433 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, a saturated aqueous ammonium chloride solution was added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous magnesium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DIOL silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 87.0 mg (0.156 mmol, yield 72%) as a white solid.

Mass spectrum (ESI, m/z):559[M+1] + .

1 H-NMR (400 MHz, DMSO-d 6 ) δ:8.60 (d, J=1.4 Hz, 2H), 7.54-7.47 (m, 1H), 7.43-7.35 (m, 1H), 7.32-7.24 (m, 1H), 5.06 (s, 2H), 4.10-4.01 (m, 2H), 3.98-3.87 (m, 4H), 3.45-3.37 (m, 2H), 2.86-2.75 (m, 2H), 2.63-2.45 (m, 2H), 2.43-2.36 (m, 2H), 1.38 (s, 9H).

2-Fluoro-3-[2-(4-{[2-(methylamino)ethoxy]imino}piperidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate dihydrochloride (Compound II-516 dihydrochloride)

2 M hydrogen chloride/ethanol solution (3 mL) was added to 3-{2-[4-({2-[(tert-butoxycarbonyl)(methyl)amino]ethoxy}imino)piperidin-1-yl]pyrimidin-5-yl}-2-fluorobenzyl carbamimidoylcarbamate 87 mg (0.16 mmol) synthesized in the same manner as in Example 161, and the mixture was stirred at room temperature for 14 hours. After the completion of the reaction, the reaction mixture was concentrated under reduced pressure. The concentrated residue was washed with TBME to give the title compound 66 mg (0.12 mmol, yield 75%) as a white solid.

Mass spectrum (ESI, m/z):459[M+1] + .

1 H-NMR (400 MHz, DMSO-d 6 +D 2 O) δ:8.61 (d, J=1.3 Hz, 2H), 7.66-7.58 (m, 1H), 7.56-7.48 (m, 1H), 7.39-7.30 (m, 1H), 5.36 (s, 2H), 4.26-4.18 (m, 2H), 4.00-3.90 (m, 4H), 3.24-3.16 (m, 2H), 2.69-2.62 (m, 2H), 2.60 (s, 3H), 2.46-2.38 (m, 2H).

3-{2-[4-({2-[(Di-tert-butoxycarbonyl)amino]ethoxy}imino)piperidin-1-yl]pyrimidin-5-yl}-2-fluorobenzyl carbamimidoylcarbamate (Compound II-572)

CDI 61.0 mg (0.376 mmol) was added to a DMF (2 mL) solution of di-tert-butyl (2-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-ylidene)amino]oxy}ethyl)carbamate 105 mg (0.188 mmol) synthesized in the same manner as in Reference Example 7-108, and the mixture was stirred at room temperature for 2 hours. Next, guanidine carbonate 68 mg (0.377 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, a saturated aqueous ammonium chloride solution was added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous magnesium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DIOL silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 99.0 mg (0.154 mmol, yield 82%) as a colorless oil.

Mass spectrum (ESI, m/z):645[M+1] + .

1 H-NMR (400 MHz, DMSO-d 6 ) δ:8.59 (d, J=1.4 Hz, 2H), 7.53-7.46 (m, 1H), 7.42-7.36 (m, 1H), 7.31-7.24 (m, 1H), 5.06 (s, 2H), 4.11-4.05 (m, 2H), 3.95-3.87 (m, 4H), 3.79-3.73 (m, 2H), 2.58-2.47 (m, 2H), 2.42-2.35 (m, 2H), 1.43 (s, 18H).

3-(2-{4-[(2-Aminoethoxy)imino]piperidin-1-yl}pyrimidin-5-yl)-2-fluorobenzyl carbamimidoylcarbamate (Compound II-515)

2 M hydrogen chloride/ethanol solution (3 mL) was added to 3-{2-[4-({2-[(di-tert-butoxycarbonyl)amino]ethoxy}imino)piperidin-1-yl]pyrimidin-5-yl}-2-fluorobenzyl carbamimidoylcarbamate 99 mg (0.15 mmol) synthesized in the same manner as in Example 163, and the mixture was stirred at room temperature for 14 hours. After the completion of the reaction, the reaction mixture was concentrated under reduced pressure. The concentrated residue was washed with TBME and was filtered. The residue obtained was dissolved into ethanol and was neutralized with triethylamine. The solution thus obtained was purified by silica gel column chromatography (DIOL silica gel, eluting solvent: ethyl acetate:methanol). The crude product thus obtained was washed with TBME and was dried under reduced pressure to give the title compound 43 mg (0.097 mmol, yield 65%) as a white solid.

Mass spectrum (ESI, m/z):445[M+1] + .

1 H-NMR (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (d, J=1.3 Hz, 2H), 7.54-7.47 (m, 1H), 7.43-7.36 (m, 1H), 7.32-7.25 (m, 1H), 5.06 (s, 2H), 3.98-3.89 (m, 6H), 2.76-2.70 (m, 2H), 2.63-2.57 (m, 2H), 2.42-2.35 (m, 2H).

3-(2-{4-[(2-Cyanoethoxy)imino]piperidin-1-yl}pyrimidin-5-yl)-2-fluorobenzyl carbamimidoylcarbamate (Compound II-526)

CDI 53 mg (0.33 mmol) was added to a DMF (4 ml) solution of 3-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-ylidene)amino]oxy}propanenitrile 60 mg (0.16 mmol) synthesized in the same manner as in Reference Example 7-109, and the mixture was stirred at room temperature for 14 hours. Next, guanidine carbonate 59 mg (0.33 mmol) was added, and the mixture was stirred at room temperature for 1 hour. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 67 mg (0.15 mmol, yield 91%) as a white solid.

Mass spectrum (ESI, m/z):455[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.60 (d, J=1.4 Hz, 2H), 7.54-7.47 (m, 1H), 7.43-7.37 (m, 1H), 7.31-7.26 (m, 1H), 5.06 (s, 2H), 4.17 (t, J=6.0 Hz, 2H), 3.99-3.91 (m, 4H), 2.85 (t, J=6.0 Hz, 2H), 2.65-2.55 (m, 2H), 2.48-2.39 (m, 2H).

3-(2-{4-[(3-Cyanopropoxy)imino]piperidin-1-yl}pyrimidin-5-yl)-2-fluorobenzyl carbamimidoylcarbamate (Compound II-527)

CDI 60 mg (0.37 mmol) was added to a DMF (4 mL) solution of 4-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-ylidene)amino]oxy}butanenitrile 69 mg (0.18 mmol) synthesized in the same manner as in Reference Example 7-110, and the mixture was stirred at room temperature for 7 hours. Next, guanidine carbonate 65 mg (0.36 mmol) was added, and the mixture was stirred at room temperature for 16 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 69 mg (0.15 mmol, yield 83%) as a white solid.

Mass spectrum (ESI, m/z):469[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (d, J=1.4 Hz, 2H), 7.55-7.47 (m, 1H), 7.44-7.36 (m, 1H), 7.33-7.25 (m, 1H), 5.06 (s, 2H), 4.05 (t, J=6.0 Hz, 2H), 3.97-3.89 (m, 4H), 2.64-2.49 (m, 4H), 2.44-2.37 (m, 2H), 1.96-1.85 (m, 2H).

2-Fluoro-3-[2-(4-{[2-(methylsulfonyl)ethoxy]imino}piperidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate (Compound II-528)

CDI 52 mg (0.29 mmol) was added to a DMF (6 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-one O-[2-(methylsulfonyl)ethyl] oxime 61 mg (0.14 mmol) synthesized in the same manner as in Reference Example 7-111, and the mixture was stirred at room temperature for 14 hours. Next, guanidine carbonate 47 mg (0.29 mmol) was added, and the mixture was stirred at room temperature for 7 hours. After the completion of the reaction, water and methylene chloride were added to the reaction mixture, and the mixture was stirred at room temperature. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 19 mg (0.037 mmol, yield 26%) as a white solid.

Mass spectrum (ESI, m/z):508[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.60 (d, J=1.3 Hz, 2H), 7.55-7.47 (m, 1H), 7.43-7.36 (m, 1H), 7.33-7.24 (m, 1H), 5.06 (s, 2H), 4.35 (t, J=5.8 Hz, 2H), 3.96-3.87 (m, 4H), 3.52-3.43 (m, 2H), 2.99 (s, 3H), 2.63-2.56 (m, 2H), 2.46-2.38 (m, 2H).

2-Fluoro-3-[2-(4-{[3-(methylsulfonyl)propoxy]imino}piperidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate (Compound II-529)

CDI 6.0 mg (0.037 mmol) was added to a DMF (1 ml) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-one O-[3-(methylsulfonyl)propyl] oxime 8.0 mg (0.018 mmol) synthesized in the same manner as in Reference Example 7-112, and the mixture was stirred at room temperature for 14 hours. Further, CDI 12 mg (0.074 mmol) was added, and the mixture was stirred at room temperature for 2 hours. Further, CDI 12 mg (0.074 mmol) was added, and the mixture was stirred at room temperature for 2 hours. Next, guanidine carbonate 6.0 mg (0.033 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol). Ethyl acetate was added to the crude product thus obtained, and the mixture was stirred at 70° C. for 30 minutes. Thereafter, the solid was collected by filtration and was dried under reduced pressure to give the title compound 5.6 mg (0.011 mmol, yield 61%) as a white solid.

Mass spectrum (ESI, m/z):522[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.60 (d, J=1.1 Hz, 2H), 7.55-7.46 (m, 1H), 7.44-7.35 (m, 1H), 7.32-7.25 (m, 1H), 5.06 (s, 2H), 4.08 (t, J=6.3 Hz, 2H), 3.98-3.88 (m, 4H), 3.23-3.11 (m, 2H), 2.98 (s, 3H), 2.64-2.57 (m, 2H), 2.44-2.36 (m, 2H), 2.08-1.98 (m, 2H).

2-Fluoro-3-[2-(4-{[(1-methyl-1H-pyrazol-3-yl)methoxy]imino}piperidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate (Compound II-541)

CDI 73 mg (0.45 mmol) was added to a DMF (3 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-one O-[(1-methyl-1H-pyrazol-3-yl)methyl] oxime 83 mg (0.20 mmol) synthesized in the same manner as Reference Compound 7-113, and the mixture was stirred at room temperature for 14 hours. Next, guanidine carbonate 73 mg (0.41 mmol) was added, and the mixture was stirred at room temperature for 3.5 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: 1,2-dichloroethane:methanol). Ethyl acetate was added to the crude product thus obtained, and the mixture was ultrasonicated. The solid was collected by filtration and was dried under reduced pressure to give the title compound 55 mg (0.11 mmol, yield 55%) as a white solid.

Mass spectrum (APCI, m/z):496[M+l] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (d, J=1.3 Hz, 2H), 7.61 (d, J=2.1 Hz, 1H), 7.53-7.47 (m, 1H), 7.42-7.36 (m, 1H), 7.31-7.25 (m, 1H), 6.23 (d, J=2.1 Hz, 1H), 5.06 (s, 2H), 4.93 (s, 2H), 3.95-3.87 (m, 4H), 3.80 (s, 3H), 2.60-2.48 (m, 2H), 2.42-2.35 (m, 2H).

2-Fluoro-3-{2-[4-({[1-(tetrahydropyran-2-yl)-1H-pyrazol-3-yl]methoxy}imino)piperidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate (Compound II-573)

CDI 16 mg (0.10 mmol) was added to a DMF (4 ml) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-one O-{[1-(tetrahydropyran-2-yl)-1H-pyrazol-3-yl]methyl} oxime 23 mg (0.048 mmol) synthesized in the same manner as in Reference Example 7-114, and the mixture was stirred at room temperature for 14 hours. Further, CDI 8.0 mg (0.049 mmol) was added, and the mixture was stirred at room temperature for 1.5 hours. Next, guanidine carbonate 18 mg (0.10 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 27 mg (0.047 mmol, yield 98%) as a white solid.

Mass spectrum (ESI, m/z):566[M+1] + .

1 H-NMR spectrum (400 MHz, CDCl 3 ) δ:8.52 (d, J=1.4 Hz, 2H), 7.57 (d, J=2.4 Hz, 1H), 7.46-7.40 (m, 1H), 7.32-7.27 (m, 1H), 7.22-7.14 (m, 1H), 6.36 (d, J=2.4 Hz, 1H), 5.40-5.33 (m, 1H), 5.24 (s, 2H), 5.12 (s, 2H), 4.11-4.03 (m, 1H), 4.03-3.94 (m, 4H), 3.75-3.63 (m, 1H), 2.72-2.67 (m, 2H), 2.49-2.44 (m, 2H), 2.19-1.97 (m, 3H), 1.80-1.49 (m, 3H).

3-[2-(4-{[(1H-pyrazol-3-yl)methoxy]imino}piperidin-1-yl)pyrimidin-5-yl]-2-fluorobenzyl carbamimidoylcarbamate (Compound II-539)

2 M hydrogen chloride/ethanol solution (1.6 ml) was added to 2-fluoro-3-{2-[4-({[1-(tetrahydropyran-2-yl)-1H-pyrazol-3-yl]methoxy}imino)piperidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate 25 mg (0.044 mmol) synthesized in the same manner as in Example 170, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, TEA and ethanol were added to the reaction mixture under ice cooling. The mixture was stirred at room temperature for 30 minutes, and the precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 9.9 mg (0.021 mmol, yield 48%) as a white solid.

Mass spectrum (ESI, m/z):482[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (d, J=1.3 Hz, 2H), 7.67-7.46 (m, 2H), 7.43-7.35 (m, 1H), 7.31-7.25 (m, 1H), 6.27 (d, J=2.1 Hz, 1H), 5.06 (s, 2H), 5.00 (s, 2H), 3.97-3.86 (m, 4H), 2.60-2.54 (m, 2H), 2.42-2.36 (m, 2H).

2-Fluoro-3-{2-[4-({[1-(tetrahydropyran-2-yl)-1H-pyrazol-4-yl]methoxy}imino)piperidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate (Compound II-574)

CDI 65 mg (0.40 mmol) was added to a DMF (4 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-5-one O-{[1-(tetrahydropyran-2-yl)-1H-pyrazol-4-yl]methyl} oxime 89 mg (0.19 mmol) synthesized in the same manner as in Reference Example 7-115, and the mixture was stirred at room temperature for 3 hours. Next, guanidine carbonate 70 mg (0.39 mmol) was added, and the mixture was stirred at room temperature for 3 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol) to give the title compound 91 mg (0.16 mmol, yield 84%) as a white solid.

Mass spectrum (ESI, m/z):566[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (s, 2H), 7.89 (s, 1H), 7.53-7.47 (m, 2H), 7.42-7.36 (m, 1H), 7.31-7.25 (m, 1H), 5.38-5.33 (m, 1H), 5.06 (s, 2H), 4.90 (s, 2H), 3.95-3.87 (m, 5H), 3.65-3.55 (m, 1H), 2.59-2.53 (m, 2H), 2.44-2.33 (m, 2H), 2.14-1.82 (m, 3H), 1.74-1.43 (m, 3H).

3-[2-(4-{[(1H-pyrazol-4-yl)methoxy]imino}piperidin-1-yl)pyrimidin-5-yl]-2-fluorobenzyl carbamimidoylcarbamate (Compound II-540)

2 M hydrogen chloride/ethanol solution 2.0 mL (4.0 mmol) was added to 2-fluoro-3-{2-[4-({[1-(tetrahydropyran-2-yl)-1H-pyrazol-4-yl]methoxy}imino)piperidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate 80 mg (0.14 mmol) synthesized in the same manner as in Example 172, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, the reaction mixture was concentrated under reduced pressure. Methylene chloride and TEA were added to the concentrated residue, and subsequently water was added. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 41 mg (0.085 mmol, yield 61%) as a white solid.

Mass spectrum (ESI, m/z):482[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (d, J=1.4 Hz, 2H), 7.87-7.65 (m, 1H), 7.61-7.45 (m, 2H), 7.43-7.36 (m, 1H), 7.33-7.22 (m, 1H), 5.06 (s, 2H), 4.93 (s, 2H), 4.02-3.83 (m, 4H), 2.59-2.53 (m, 2H), 2.45-2.37 (m, 2H).

2-Fluoro-3-[2-(4-{[(1-methyl-1H-pyrazol-4-yl)methoxy]imino}piperidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate (Compound II-542)

CDI 84 mg (0.52 mmol) was added to a DMF (6 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-one O-[(1-methyl-1H-pyrazol-4-yl)methyl] oxime 0.11 g (0.26 mmol) synthesized in the same manner as in Reference Example 7-116, and the mixture was stirred at room temperature for 15 hours. Next, guanidine carbonate 93 mg (0.52 mmol) was added, and the mixture was stirred at room temperature for 5 hours. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol). Ethyl acetate was added to the crude product thus obtained, and the mixture was stirred. The solid was collected by filtration and was dried under reduced pressure to give the title compound 78 mg (0.16 mmol, yield 62%) as a white solid.

Mass spectrum (ESI, m/z):496[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (d, J=1.4 Hz, 2H), 7.70 (s, 1H), 7.54-7.47 (m, 1H), 7.42 (s, 1H), 7.42-7.37 (m, 1H), 7.32-7.25 (m, 1H), 5.06 (s, 2H), 4.87 (s, 2H), 3.95-3.87 (m, 4H), 3.81 (s, 3H), 2.57-2.53 (m, 2H), 2.43-2.33 (m, 2H).

3-[2-(4-{[2-(1H-pyrazol-1-yl)ethoxy]imino}piperidin-1-yl)pyrimidin-5-yl]-2-fluorobenzyl carbamimidoylcarbamate (Compound II-543)

CDI 24 mg (0.15 mmol) was added to a DMF (1 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-one O-[2-(1H-pyrazol-1-yl)ethyl] oxime 30 mg (0.073 mmol) synthesized in the same manner as in Reference Example 7-117, and the mixture was stirred at room temperature for 3 hours. Next, guanidine carbonate 26 mg (0.15 mmol) was added, and the mixture was stirred at room temperature for 3 hours. After the completion of the reaction, water was added to the reaction mixture, and the mixture was stirred at room temperature. The precipitated solid was collected by filtration. The crude product thus obtained was washed with TBME and was dried under reduced pressure to give the title compound 16 mg (0.032 mmol, yield 44%) as a white solid.

Mass spectrum (ESI, m/z):496[M+1] + .

1 H-NMR (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (d, J=1.4 Hz, 2H), 7.67 (dd, J=0.6, 2.3 Hz, 1H), 7.54-7.47 (m, 1H), 7.45 (dd, J=0.6, 1.9 Hz, 1H), 7.43-7.36 (m, 1H), 7.32-7.25 (m, 1H), 6.23 (dd, J=1.9, 2.3 Hz, 1H), 5.06 (s, 2H), 4.39-4.32 (m, 2H), 4.32-4.25 (m, 2H), 3.97-3.85 (m, 4H), 2.56-2.46 (m, 2H), 2.42-2.36 (m, 2H).

2-Fluoro-3-(2-{4-[(pyridin-4-ylmethoxy)imino]piperidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-544)

CDI 95 mg (0.586 mmol) was added to a DMF (4 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-one O-pyridin-4-ylmethyl oxime 104 mg (0.255 mmol) synthesized in the same manner as Reference Compound 7-118, and the mixture was stirred at room temperature for 2 hours. Next, guanidine carbonate 95 mg (0.527 mmol) was added, and the mixture was stirred at room temperature for 16 hours. After the completion of the reaction, water was added to the reaction mixture, and the mixture was stirred at room temperature. The precipitated solid was collected by filtration. Ethyl acetate was added to the obtained solid, and the mixture was stirred at room temperature. Thereafter, the solid was collected by filtration and was dried under reduced pressure to give the title compound 99.5 mg (0.202 mmol, yield 79%) as a white solid.

Mass spectrum (ESI, m/z):493[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.60 (d, J=1.0 Hz, 2H), 8.56-8.51 (m, 2H), 7.54-7.47 (m, 1H), 7.43-7.36 (m, 1H), 7.36-7.32 (m, 2H), 7.31-7.25 (m, 1H), 5.11 (s, 2H), 5.06 (s, 2H), 4.00-3.88 (m, 4H), 2.73-2.66 (m, 2H), 2.43-2.36 (m, 2H).

3-[2-(4-{[2-(2,5-Dioxopyrrolidin-1-yl)ethoxy]imino}piperidin-1-yl)pyrimidin-5-yl]-2-fluorobenzyl carbamimidoylcarbamate (Compound II-545)

CDI 101 mg (0.62 mmol) was added to a DMF (4 ml) solution of 1-(2-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-ylidene)amino]oxy}ethyl)pyrrolidine-2,5-dione 138 mg (0.31 mmol) synthesized in the same manner as in Reference Example 7-119, and the mixture was stirred at room temperature for 4 hours. Next, guanidine carbonate 115 mg (0.64 mmol) was added, and the mixture was stirred at room temperature for 1 hour. After the completion of the reaction, water was added to the reaction mixture, and followed by extraction with methylene chloride. The organic layer was washed with water, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure. The concentrated residue was purified by silica gel column chromatography (DNH silica gel, eluting solvent: ethyl acetate:methanol). Ethyl acetate was added to the crude product thus obtained, and the mixture was stirred at 70° C. for 30 minutes. Thereafter, the solid was collected by filtration and was dried under reduced pressure to give the title compound 93 mg (0.18 mmol, yield 58%) as a white solid.

Mass spectrum (ESI, m/z):527[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.60 (d, J=1.3 Hz, 2H), 7.55-7.47 (m, 1H), 7.43-7.36 (m, 1H), 7.32-7.25 (m, 1H), 5.06 (s, 2H), 4.11-4.05 (m, 2H), 3.95-3.86 (m, 4H), 3.67-3.55 (m, 2H), 2.63 (s, 4H), 2.52-2.47 (m, 2H), 2.40-2.32 (m, 2H).

2-Fluoro-3-[2-(4-{[2-(2-oxopyrrolidin-1-yl)ethoxy]imino}piperidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate (Compound II-546)

CDI 61 mg (0.38 mmol) was added to a DMF (2 ml) solution of 1-(2-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-ylidene)amino]oxy}ethyl)pyrrolidin-2-one 80 mg (0.19 mmol) synthesized in the same manner as in Reference Example 7-120, and the mixture was stirred at room temperature for 4 hours. Next, guanidine carbonate 67 mg (0.37 mmol) was added, and the mixture was stirred at room temperature for 15 hours. After the completion of the reaction, water was added to the reaction mixture and the mixture was stirred at room temperature. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 82 mg (0.16 mmol, yield 84%) as a white solid.

Mass spectrum (ESI, m/z):513[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (d, J=1.1 Hz, 2H), 7.55-7.47 (m, 1H), 7.44-7.36 (m, 1H), 7.33-7.24 (m, 1H), 5.06 (s, 2H), 4.11-4.04 (m, 2H), 3.96-3.87 (m, 4H), 3.45-3.36 (m, 4H), 2.60-2.54 (m, 2H), 2.48-2.36 (m, 2H), 2.25-2.16 (m, 2H), 2.00-1.83 (m, 2H).

2-Fluoro-3-[2-(4-{[2-(2-oxooxazolidin-3-yl)ethoxy]imino}piperidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate (Compound II-547)

CDI 76 mg (0.47 mmol) was added to a DMF (4 ml) solution of 3-(2-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-ylidene)amino]oxy}ethyl)oxazolidin-2-one 67 mg (0.16 mmol) synthesized in the same manner as in Reference Example 7-121, and the mixture was stirred at room temperature for 14 hours. Further, CDI 25 mg (0.15 mmol) was added, and the mixture was stirred at room temperature for 1 hour. Next, guanidine carbonate 58 mg (0.32 mmol) was added, and the mixture was stirred at room temperature for 1.5 hours. After the completion of the reaction, water was added to the reaction mixture and the mixture was stirred at room temperature. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 62 mg (0.12 mmol, yield 75%) as a white solid.

Mass spectrum (ESI, m/z):515[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.59 (br s, 2H), 7.55-7.46 (m, 1H), 7.43-7.36 (m, 1H), 7.32-7.25 (m, 1H), 5.06 (s, 2H), 4.29-4.21 (m, 2H), 4.17-4.07 (m, 2H), 3.97-3.87 (m, 4H), 3.64-3.55 (m, 2H), 3.44-3.38 (m, 2H), 2.60-2.54 (m, 2H), 2.43-2.36 (m, 2H).

2-Fluoro-3-[2-(4-{[2-(3-oxomorpholino)ethoxy]imino}piperidin-1-yl)pyrimidin-5-yl]benzyl carbamimidoylcarbamate (Compound II-548)

CDI 130 mg (0.802 mmol) was added to a DMF (4 ml) solution of 4-(2-{[(1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-ylidene)amino]oxy}ethyl)morpholin-3-one 118 mg (0.266 mmol) synthesized in the same manner as in Reference Example 7-122, and the mixture was stirred at room temperature for 4 hours. Next, guanidine carbonate 106 mg (0.588 mmol) was added, and the mixture was stirred at room temperature for 2 hours. After the completion of the reaction, water was added to the reaction mixture and the mixture was stirred at room temperature. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 106 mg (0.201 mmol, yield 76%) as a white solid.

Mass spectrum (ESI, m/z):529[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 ) δ:8.60 (d, J=1.4 Hz, 2H), 7.55-7.47 (m, 1H), 7.42-7.35 (m, 1H), 7.31-7.24 (m, 1H), 5.06 (s, 2H), 4.17-4.08 (m, 2H), 4.02 (s, 2H), 3.96-3.89 (m, 4H), 3.84-3.76 (m, 2H), 3.60-3.52 (m, 2H), 3.43-3.35 (m, 2H), 2.60-2.52 (m, 2H), 2.43-2.36 (m, 2H).

2-Fluoro-3-{2-[4-(phenoxyimino)piperidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate (Compound II-565)

CDI 69 mg (0.43 mmol) was added to a DMF (1 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-one O-phenyl oxime 68 mg (0.17 mmol) synthesized in the same manner as in Reference Example 120, and the mixture was stirred at room temperature for 1 hour. Further, DMF 1 mL was added. Next, guanidine carbonate 67 mg (0.37 mmol) was added, and the mixture was stirred at room temperature for 11 hours. After the completion of the reaction, water was added to the reaction mixture, and the mixture was stirred at room temperature. The precipitated solid was collected by filtration. The obtained solid was purified by silica gel column chromatography (DIOL silica gel, eluting solvent: ethyl acetate:methanol). The resultant fraction including the target compound was concentrated under reduced pressure. Ethanol was added to the concentrated residue, and the mixture was stirred at 65° C. for 30 minutes. Thereafter, the solid was collected by filtration and was dried under reduced pressure to give the title compound 58 mg (0.11 mmol, yield 65%) as a white solid.

Mass spectrum (ESI, m/z):478[M+1].

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.62 (s, 2H), 7.55-7.48 (m, 1H), 7.43-7.27 (m, 4H), 7.20-7.13 (m, 2H), 7.05-6.97 (m, 1H), 5.07 (s, 2H), 4.07-3.98 (m, 4H), 2.86-2.80 (m, 2H), 2.61-2.54 (m, 2H).

2-Fluoro-3-(2-{4-[(pyrimidin-5-yloxy)imino]piperidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound III-566)

CDI 36 mg (0.22 mmol) was added to a DMF (2 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-one O-pyrimidin-5-yl oxime 44 mg (0.11 mmol) synthesized in the same manner as in Reference Example 7-123, and the mixture was stirred at room temperature for 3.5 hours. Further, CDI 18 mg (0.11 mmol) was added, and the mixture was stirred at room temperature for 3.5 hours. Next, guanidine carbonate 50 mg (0.28 mmol) was added, and the mixture was stirred at room temperature for 19 hours. After the completion of the reaction, water was added to the reaction mixture, and the mixture was stirred at room temperature. The precipitated solid was collected by filtration. The obtained solid was purified by silica gel column chromatography (DIOL silica gel, eluting solvent: ethyl acetate:methanol) and then purified by silica gel column chromatography (eluting solvent: ethyl acetate:methanol) to give the title compound 17 mg (0.035 mmol, yield 32%) as a light yellow solid.

Mass spectrum (ESI, m/z):480[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.89 (d, J=1.3 Hz, 1H), 8.74 (d, J=1.0 Hz, 2H), 8.65-8.61 (m, 2H), 7.55-7.49 (m, 1H), 7.44-7.38 (m, 1H), 7.33-7.27 (m, 1H), 5.07 (s, 2H), 4.09-4.00 (m, 4H), 2.91-2.84 (m, 2H), 2.64-2.56 (m, 2H).

2-Fluoro-3-(2-{4-[(pyrimidin-2-yloxy)imino]piperidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-567)

CDI 13.6 mg (0.084 mmol) was added to a DMF (1 mL) solution of 1-{5-[2-fluoro-3-(hydroxymethyl)phenyl]pyrimidin-2-yl}piperidin-4-one O-pyrimidin-2-yl oxime 15.4 mg (0.039 mmol) synthesized in the same manner as in Reference Example 7-124, and the mixture was stirred at room temperature for 3.5 hours. Further, CDI 4.1 mg (0.025 mmol) was added, and the mixture was stirred at room temperature for 1.5 hours. Next, guanidine carbonate 18.1 mg (0.10 mmol) was added, and the mixture was stirred at room temperature for 18.5 hours. After the completion of the reaction, water was added to the reaction mixture and the mixture was stirred at room temperature. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 13.6 mg (0.028 mmol, yield 72%) as a white solid.

Mass spectrum (ESI, m/z):480[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) 5:8.67 (d, J=4.8 Hz, 2H), 8.63 (d, J=1.3 Hz, 2H), 7.57-7.48 (m, 1H), 7.45-7.36 (m, 1H), 7.32-7.21 (m, 2H), 5.07 (s, 2H), 4.09-3.98 (m, 4H), 2.87-2.80 (m, 2H), 2.63-2.57 (m, 2H).

2-Fluoro-3-{2-[3-(methoxyimino)azetidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate 1/2 L-tartrate (Compound II-2 1/2 L-tartrate)

DMSO (5 mL) was added to 2-fluoro-3-{2-[3-(methoxyimino)azetidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate (Compound II-2) 500 mg (1.29 mmol) synthesized in the same manner as in Example 1, and the mixture was heated to 50° C. to give a solution. Next, L-tartaric acid 198 mg (1.32 mmol) was added, and the mixture was cooled to room temperature. Ethyl acetate (20 ml) was dropped thereto, and the mixture was stirred at room temperature for 16 hours. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 545 mg (1.18 mmol, yield 91%) as a white solid.

Mass spectrum (ESI, m/z):388[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.4 Hz, 2H), 7.56-7.48 (m, 1H), 7.48-7.38 (m, 1H), 7.35-7.24 (m, 1H), 5.09 (s, 2H), 4.85-4.78 (m, 4H), 4.19 (s, 1H), 3.83 (s, 3H).

2-Fluoro-3-{2-[3-(methoxyimino)azetidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate 1/2 D-tartrate (Compound II-2 1/2 D-tartrate)

DMSO (5 mL) was added to 2-fluoro-3-{2-[3-(methoxyimino)azetidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate (Compound II-2) 500 mg (1.29 mmol) synthesized in the same manner as in Example 1, and the mixture was heated to 50° C. to give a solution. Next, D-tartaric acid 201 mg (1.34 mmol) was added, and the mixture was cooled to room temperature. Ethyl acetate (20 ml) was dropped thereto, and the mixture was stirred at room temperature for 16 hours. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 558 mg (1.21 mmol, yield 94%) as a white solid.

Mass spectrum (ESI, m/z):388[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.4 Hz, 2H), 7.57-7.49 (m, 1H), 7.47-7.40 (m, 1H), 7.37-7.25 (m, 1H), 5.10 (s, 2H), 4.87-4.76 (m, 4H), 4.20 (s, 1H), 3.83 (s, 3H).

2-Fluoro-3-{2-[3-(methoxyimino)azetidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate maleate (Compound II-2 maleate)

DMSO (5 mL) was added to 2-fluoro-3-{2-[3-(methoxyimino)azetidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate (Compound II-2) 500 mg (1.29 mmol) synthesized in the same manner as in Example 1, and the mixture was heated to 50° C. to give a solution. Next, maleic acid 152 mg (1.31 mmol) was added, and the mixture was cooled to room temperature. Ethyl acetate (20 ml) was dropped thereto, and the mixture was stirred at room temperature for 16 hours. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 556 mg (1.10 mmol, yield 85%) as a white solid.

Mass spectrum (ESI, m/z):388[M+l] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.64 (d, J=1.1 Hz, 2H), 7.66-7.57 (m, 1H), 7.56-7.49 (m, 1H), 7.39-7.31 (m, 1H), 6.08 (s, 2H), 5.33 (s, 2H), 4.87-4.77 (m, 4H), 3.83 (s, 3H).

2-Fluoro-3-{2-[3-(methoxyimino)azetidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate 1/2 succinate (Compound II-2 1/2 succinate)

DMSO (5 mL) was added to 2-fluoro-3-{2-[3-(methoxyimino)azetidin-1-yl]pyrimidin-5-yl}benzyl carbamimidoylcarbamate (Compound III-2) 500 mg (1.29 mmol) synthesized in the same manner as in Example 1, and the mixture was heated to 50° C. to give a solution. Next, succinic acid 153 mg (1.30 mmol) was added, and the mixture was cooled to room temperature. Ethyl acetate (20 ml) was dropped thereto, and the mixture was stirred at room temperature for 16 hours. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 506 mg (1.13 mmol, yield 88%) as a white solid.

Mass spectrum (ESI, m/z):388[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.3 Hz, 2H), 7.54-7.38 (m, 2H), 7.34-7.26 (m, 1H), 5.07 (s, 2H), 4.86-4.77 (m, 4H), 3.83 (s, 3H), 2.41 (s, 2H).

3-{2-[3-(Ethoxyimino)azetidin-1-yl]pyrimidin-5-yl}-2-fluorobenzyl carbamimidoylcarbamate 1/2 L-tartrate (Compound II-3 1/2 L-tartrate)

DMSO (5 mL) was added to 3-{2-[3-(ethoxyimino)azetidin-1-yl]pyrimidin-5-yl}-2-fluorobenzyl carbamimidoylcarbamate (Compound II-3) 500 mg (1.25 mmol) synthesized in the same manner as in Example 2, and the mixture was heated to 50° C. to give a solution. Next, L-tartaric acid 190 mg (1.27 mmol) was added, and the mixture was cooled to room temperature. Ethyl acetate (20 ml) was dropped thereto, and the mixture was stirred at room temperature for 16 hours. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 561 mg (1.18 mmol, yield 94%) as a white solid.

Mass spectrum (ESI, m/z):402[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.3 Hz, 2H), 7.57-7.48 (m, 1H), 7.47-7.39 (m, 1H), 7.34-7.25 (m, 1H), 5.09 (s, 2H), 4.87-4.75 (m, 4H), 4.19 (s, 1H), 4.08 (q, J=7.0 Hz, 2H), 1.22 (t, J=7.0 Hz, 3H).

3-{2-[3-(Ethoxyimino)azetidin-1-yl]pyrimidin-5-yl}-2-fluorobenzyl carbamimidoylcarbamate 1/2 D-tartrate (Compound 111-3 1/2 D-tartrate)

DMSO (5 mL) was added to 3-{2-[3-(ethoxyimino)azetidin-1-yl]pyrimidin-5-yl}-2-fluorobenzyl carbamimidoylcarbamate (Compound II-3) 500 mg (1.25 mmol) synthesized in the same manner as in Example 2, and the mixture was heated to 50° C. to give a solution. Next, D-tartaric acid 188 mg (1.25 mmol) was added, and the mixture was cooled to room temperature. Ethyl acetate (20 ml) was dropped thereto, and the mixture was stirred at room temperature for 16 hours. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 534 mg (1.12 mmol, yield 90%) as a white solid.

Mass spectrum (ESI, m/z):402[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.3 Hz, 2H), 7.58-7.48 (m, 1H), 7.46-7.39 (m, 1H), 7.35-7.25 (m, 1H), 5.08 (s, 2H), 4.89-4.74 (m, 4H), 4.17 (s, 1H), 4.08 (q, J=7.1 Hz, 2H), 1.22 (t, J=0.1 Hz, 3H).

3-{2-[3-(Ethoxyimino)azetidin-1-yl]pyrimidin-5-yl}-2-fluorobenzyl carbamimidoylcarbamate maleate (Compound III-3 maleate)

DMSO (5 mL) was added to 3-{2-[3-(ethoxyimino)azetidin-1-yl]pyrimidin-5-yl}-2-fluorobenzyl carbamimidoylcarbamate (Compound II-3) 500 mg (1.25 mmol) synthesized in the same manner as in Example 2, and the mixture was heated to 50° C. to give a solution. Next, maleic acid 151 mg (1.30 mmol) was added, and the mixture was cooled to room temperature. Ethyl acetate (20 ml) was dropped thereto, and the mixture was stirred at room temperature for 16 hours. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 597 mg (1.15 mmol, yield 92%) as a white solid.

Mass spectrum (ESI, m/z):402[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.64 (d, J=1.1 Hz, 2H), 7.66-7.56 (m, 1H), 7.56-7.48 (m, 1H), 7.39-7.32 (m, 1H), 6.07 (s, 2H), 5.30 (s, 2H), 4.93-4.74 (m, 4H), 4.09 (q, J=7.0 Hz, 2H), 1.22 (t, J=7.0 Hz, 3H).

3-{2-[3-(Ethoxyimino)azetidin-1-yl]pyrimidin-5-yl}-2-fluorobenzyl carbamimidoylcarbamate 1/2 succinate (Compound II-3 1/2 succinate)

DMSO (5 mL) was added to 3-{2-[3-(ethoxyimino)azetidin-1-yl]pyrimidin-5-yl}-2-fluorobenzyl carbamimidoylcarbamate (Compound II-3) 500 mg (1.25 mmol) synthesized in the same manner as in Example 2, and the mixture was heated to 50° C. to give a solution. Next, succinic acid 147 mg (1.25 mmol) was added, and the mixture was cooled to room temperature. Ethyl acetate (20 ml) was dropped thereto, and the mixture was stirred at room temperature for 16 hours. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 560 mg (1.22 mmol, yield 98%) as a white solid.

Mass spectrum (ESI, m/z):402[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.67-8.59 (m, 2H), 7.55-7.48 (m, 1H), 7.46-7.39 (m, 1H), 7.33-7.27 (m, 1H), 5.07 (s, 2H), 4.88-4.76 (m, 4H), 4.08 (q, J=7.0 Hz, 2H), 2.42 (s, 2H), 1.22 (t, J=7.0 Hz, 3H).

2-Fluoro-3-(2-{3-[(methoxy-d 3 )imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate 1/2 L-tartrate (Compound II-12 1/2 L-tartrate)

DMSO (5 mL) was added to 2-fluoro-3-(2-{3-[(methoxy-d 3 )imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-12) 500 mg (1.28 mmol) synthesized in the same manner as in Example 3, and the mixture was heated to 50° C. to give a solution. Next, L-tartaric acid 199 mg (1.33 mmol) was added, and the mixture was cooled to room temperature. Ethyl acetate (20 ml) was dropped thereto, and the mixture was stirred at room temperature for 16 hours. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 573 mg (1.23 mmol, yield 96%) as a white solid.

Mass spectrum (ESI, m/z):391[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (s, 2H), 7.56-7.49 (m, 1H), 7.46-7.40 (m, 1H), 7.33-7.26 (m, 1H), 5.10 (s, 2H), 4.87-4.77 (m, 4H), 4.19 (s, 1H).

2-Fluoro-3-(2-{3-[(methoxy-d 3 )imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate 1/2 D-tartrate (Compound II-12 1/2 D-tartrate)

DMSO (5 mL) was added to 2-fluoro-3-(2-{3-[(methoxy-d 3 )imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-12) 500 mg (1.28 mmol) synthesized in the same manner as in Example 3, and the mixture was heated to 50° C. to give a solution. Next, D-tartaric acid 194 mg (1.29 mmol) was added, and the mixture was cooled to room temperature. Ethyl acetate (20 ml) was dropped thereto, and the mixture was stirred at room temperature for 16 hours. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 555 mg (1.19 mmol, yield 93%) as a white solid.

Mass spectrum (ESI, m/z):391[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.1 Hz, 2H), 7.57-7.49 (m, 1H), 7.47-7.40 (m, 1H), 7.34-7.27 (m, 1H), 5.09 (s, 2H), 4.85-4.78 (m, 4H), 4.18 (s, 1H).

2-Fluoro-3-(2-{3-[(methoxy-d 3 )imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate maleate (Compound II-12 maleate)

DMSO (5 mL) was added to 2-fluoro-3-(2-{3-[(methoxy-d 3 )imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-12) 500 mg (1.28 mmol) synthesized in the same manner as in Example 3, and the mixture was heated to 50° C. to give a solution. Next, maleic acid 151 mg (1.30 mmol) was added, and the mixture was cooled to room temperature. Ethyl acetate (20 ml) was dropped thereto, and the mixture was stirred at room temperature for 16 hours. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 543 mg (1.07 mmol, yield 84%) as a white solid.

Mass spectrum (ESI, m/z):391[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.64 (d, J=1.1 Hz, 2H), 7.65-7.57 (m, 1H), 7.56-7.49 (m, 1H), 7.39-7.32 (m, 1H), 6.08 (s, 2H), 5.32 (s, 2H), 4.85-4.78 (m, 4H).

2-Fluoro-3-(2-{3-[(methoxy-d 3 )imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate 1/2 succinate (Compound II-12 1/2 succinate)

DMSO (5 mL) was added to 2-fluoro-3-(2-{3-[(methoxy-d 3 )imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-12) 500 mg (1.28 mmol) synthesized in the same manner as in Example 3, and the mixture was heated to 50° C. to give a solution. Next, succinic acid 153 mg (1.30 mmol) was added, and the mixture was cooled to room temperature. Ethyl acetate (20 ml) was dropped thereto, and the mixture was stirred at room temperature for 16 hours. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 506 mg (1.13 mmol, yield 88%) as a white solid.

Mass spectrum (ESI, m/z):391[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.63 (d, J=1.3 Hz, 2H), 7.54-7.47 (m, 1H), 7.45-7.39 (m, 1H), 7.33-7.27 (m, 1H), 5.07 (s, 2H), 4.85-4.78 (m, 4H), 2.41 (s, 2H).

2-Fluoro-3-(2-{3-[(2-fluoroethoxy)imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate 1/2 L-tartrate (Compound II-15 1/2 L-tartrate)

DMSO (5 mL) was added to 2-fluoro-3-(2-{3-[(2-fluoroethoxy)imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-15) 500 mg (1.19 mmol) synthesized in the same manner as in Example 5, and the mixture was heated to 50° C. to give a solution. Next, L-tartaric acid 179 mg (1.20 mmol) was added, and the mixture was cooled to room temperature. Ethyl acetate (20 ml) was dropped thereto, and the mixture was stirred at room temperature for 16 hours. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 541 mg (1.09 mmol, yield 92%) as a white solid.

Mass spectrum (ESI, m/z):420[M+l] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.64 (d, J=1.3 Hz, 2H), 7.58-7.49 (m, 1H), 7.48-7.40 (m, 1H), 7.36-7.27 (m, 1H), 5.10 (s, 2H), 4.90-4.80 (m, 4H), 4.75-4.55 (m, 2H), 4.36-4.22 (m, 2H), 4.18 (s, 1H).

2-Fluoro-3-(2-{3-[(2-fluoroethoxy)imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate 1/2 D-tartrate (Compound II-15 1/2 D-tartrate)

DMSO (5 mL) was added to 2-fluoro-3-(2-{3-[(2-fluoroethoxy)imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-15) 500 mg (1.19 mmol) synthesized in the same manner as in Example 5, and the mixture was heated to 50° C. to give a solution. Next, D-tartaric acid 181 mg (1.21 mmol) was added, and the mixture was cooled to room temperature. Ethyl acetate (20 ml) was dropped thereto, and the mixture was stirred at room temperature for 16 hours. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 529 mg (1.07 mmol, yield 90%) as a white solid.

Mass spectrum (ESI, m/z):420[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.64 (d, J=1.3 Hz, 2H), 7.58-7.48 (m, 1H), 7.47-7.40 (m, 1H), 7.34-7.27 (m, 1H), 5.09 (s, 2H), 4.89-4.80 (m, 4H), 4.74-4.54 (m, 2H), 4.37-4.20 (m, 2H), 4.17 (s, 1H).

2-Fluoro-3-(2-{3-[(2-fluoroethoxy)imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate maleate (Compound II-15 maleate)

DMSO (5 mL) was added to 2-fluoro-3-(2-{3-[(2-fluoroethoxy)imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-15) 500 mg (1.19 mmol) synthesized in the same manner as in Example 5, and the mixture was heated to 50° C. to give a solution. Next, maleic acid 138 mg (1.19 mmol) was added, and the mixture was cooled to room temperature. Ethyl acetate (20 ml) was dropped thereto, and the mixture was stirred at room temperature for 48 hours. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 518 mg (0.967 mmol, yield 81%) as a white solid.

Mass spectrum (ESI, m/z):420[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.64 (d, J=1.3 Hz, 2H), 7.65-7.58 (m, 1H), 7.56-7.49 (m, 1H), 7.40-7.33 (m, 1H), 6.08 (s, 2H), 5.32 (s, 2H), 4.90-4.81 (m, 4H), 4.74-4.55 (m, 2H), 4.35-4.20 (m, 2H).

2-Fluoro-3-(2-{3-[(2-fluoroethoxy)imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate 1/2 succinate (Compound II-15 1/2 succinate)

DMSO (5 mL) was added to 2-fluoro-3-(2-{3-[(2-fluoroethoxy)imino]azetidin-1-yl}pyrimidin-5-yl)benzyl carbamimidoylcarbamate (Compound II-15) 500 mg (1.19 mmol) synthesized in the same manner as in Example 5, and the mixture was heated to 50° C. to give a solution. Next, succinic acid 145 mg (1.23 mmol) was added, and the mixture was cooled to room temperature. Ethyl acetate (20 ml) was dropped thereto, and the mixture was stirred at room temperature for 20 hours. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 492 mg (1.03 mmol, yield 87%) as a white solid.

Mass spectrum (ESI, m/z):420[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.64 (s, 2H), 7.54-7.48 (m, 1H), 7.45-7.39 (m, 1H), 7.35-7.24 (m, 1H), 5.07 (s, 2H), 4.88-4.80 (m, 4H), 4.75-4.54 (m, 2H), 4.36-4.20 (m, 2H), 2.41 (s, 2H).

2-Fluoro-3-{5-fluoro-6-[3-(methoxyimino)azetidin-1-yl]pyridin-3-yl}benzyl carbamimidoylcarbamate 1/2 L-tartrate (Compound III-78 1/2 L-tartrate)

DMSO (5 mL) was added to 2-fluoro-3-{5-fluoro-6-[3-(methoxyimino)azetidin-1-yl]pyridin-3-yl}benzyl carbamimidoylcarbamate (Compound III-78) 500 mg (1.24 mmol) synthesized in the same manner as in Example 36, and the mixture was heated to 50° C. to give a solution. Next, L-tartaric acid 188 mg (1.25 mmol) was added, and the mixture was cooled to room temperature. Ethyl acetate (20 ml) was dropped thereto, and the mixture was stirred at room temperature for 16 hours. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 515 mg (1.07 mmol, yield 86%) as a white solid.

Mass spectrum (ESI, m/z):405[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) 5:8.21-8.15 (m, 1H), 7.79-7.72 (m, 1H), 7.55-7.48 (m, 1H), 7.45-7.38 (m, 1H), 7.33-7.25 (m, 1H), 5.09 (s, 2H), 4.90-4.82 (m, 4H), 4.19 (s, 1H), 3.82 (s, 3H).

2-Fluoro-3-{5-fluoro-6-[3-(methoxyimino)azetidin-1-yl]pyridin-3-yl}benzyl carbamimidoylcarbamate 1/2 D-tartrate (Compound III-78 1/2 D-tartrate)

DMSO (5 mL) was added to 2-fluoro-3-{5-fluoro-6-[3-(methoxyimino)azetidin-1-yl]pyridin-3-yl}benzyl carbamimidoylcarbamate (Compound III-78) 500 mg (1.24 mmol) synthesized in the same manner as in Example 36, and the mixture was heated to 50° C. to give a solution. Next, D-tartaric acid 186 mg (1.24 mmol) was added, and the mixture was cooled to room temperature. Ethyl acetate (20 ml) was dropped thereto, and the mixture was stirred at room temperature for 16 hours. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 525 mg (1.10 mmol, yield 89%) as a white solid.

Mass spectrum (ESI, m/z):405[M+l] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.22-8.15 (m, 1H), 7.79-7.72 (m, 1H), 7.55-7.47 (m, 1H), 7.46-7.38 (m, 1H), 7.32-7.25 (m, 1H), 5.09 (s, 2H), 4.92-4.80 (m, 4H), 4.20 (s, 1H), 3.82 (s, 3H).

2-Fluoro-3-{5-fluoro-6-[3-(methoxyimino)azetidin-1-yl]pyridin-3-yl}benzyl carbamimidoylcarbamate maleate (Compound III-78 maleate)

DMSO (5 mL) was added to 2-fluoro-3-{5-fluoro-6-[3-(methoxyimino)azetidin-1-yl]pyridin-3-yl}benzyl carbamimidoylcarbamate (Compound III-78) 500 mg (1.24 mmol) synthesized in the same manner as in Example 36, and the mixture was heated to 50° C. to give a solution. Next, maleic acid 150 mg (1.29 mmol) was added, and the mixture was cooled to room temperature. Ethyl acetate (20 ml) was dropped thereto, and the mixture was stirred at room temperature for 40 hours. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 455 mg (0.874 mmol, yield 71%) as a white solid.

Mass spectrum (ESI, m/z):405[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.21-8.17 (m, 1H), 7.81-7.70 (m, 1H), 7.63-7.56 (m, 1H), 7.56-7.47 (m, 1H), 7.40-7.28 (m, 1H), 6.07 (s, 2H), 5.32 (s, 2H), 4.90-4.84 (m, 4H), 3.82 (s, 3H).

2-Fluoro-3-{5-fluoro-6-[3-(methoxyimino)azetidin-1-yl]pyridin-3-yl}benzyl carbamimidoylcarbamate 1/2 succinate (Compound III-78 1/2 succinate)

DMSO (4 mL) was added to 2-fluoro-3-{5-fluoro-6-[3-(methoxyimino)azetidin-1-yl]pyridin-3-yl}benzyl carbamimidoylcarbamate (Compound III-78) 500 mg (1.24 mmol) synthesized in the same manner as in Example 36, and the mixture was heated to 50° C. to give a solution. Next, succinic acid 150 mg (1.27 mmol) was added, and the mixture was cooled to room temperature. Ethyl acetate (20 ml) was dropped thereto, and the mixture was stirred at room temperature for 20 hours. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 488 mg (1.05 mmol, yield 85%) as a white solid.

Mass spectrum (ESI, m/z):405[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.22-8.13 (m, 1H), 7.81-7.70 (m, 1H), 7.55-7.45 (m, 1H), 7.44-7.37 (m, 1H), 7.33-7.23 (m, 1H), 5.06 (s, 2H), 4.90-4.83 (m, 4H), 3.82 (s, 3H), 2.40 (s, 2H).

2-Fluoro-3-(5-fluoro-6-{3-[(methoxy-d 3 )imino]azetidin-1-yl}pyridin-3-yl)benzyl carbamimidoylcarbamate 1/2 L-tartrate (Compound 111-88 1/2 L-tartrate)

DMSO (5 mL) was added to 2-fluoro-3-(5-fluoro-6-{3-[(methoxy-d 3 )imino]azetidin-1-yl}pyridin-3-yl)benzyl carbamimidoylcarbamate (Compound III-88) 500 mg (1.23 mmol) synthesized in the same manner as in Example 37, and the mixture was heated to 50° C. to give a solution. Next, L-tartaric acid 185 mg (1.23 mmol) was added, and the mixture was cooled to room temperature. Ethyl acetate (20 ml) was dropped thereto, and the mixture was stirred at room temperature for 16 hours. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 567 mg (1.18 mmol, yield 96%) as a white solid.

Mass spectrum (ESI, m/z):408[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.20-8.16 (m, 1H), 7.78-7.72 (m, 1H), 7.55-7.47 (m, 1H), 7.46-7.39 (m, 1H), 7.36-7.22 (m, 1H), 5.10 (s, 2H), 4.90-4.82 (m, 4H), 4.20 (s, 1H).

2-Fluoro-3-(5-fluoro-6-{3-[(methoxy-d 3 )imino]azetidin-1-yl}pyridin-3-yl)benzyl carbamimidoylcarbamate 1/2 D-tartrate (Compound III-88 1/2 D-tartrate)

DMSO (5 mL) was added to 2-fluoro-3-(5-fluoro-6-{3-[(methoxy-d 3 )imino]azetidin-1-yl}pyridin-3-yl)benzyl carbamimidoylcarbamate (Compound III-88) 500 mg (1.23 mmol) synthesized in the same manner as in Example 37, and the mixture was heated to 50° C. to give a solution. Next, D-tartaric acid 184 mg (1.23 mmol) was added, and the mixture was cooled to room temperature. Ethyl acetate (20 ml) was dropped thereto, and the mixture was stirred at room temperature for 16 hours. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 573 mg (1.19 mmol, yield 97%) as a white solid.

Mass spectrum (ESI, m/z):408[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.20-8.15 (m, 1H), 7.80-7.71 (m, 1H), 7.55-7.48 (m, 1H), 7.46-7.38 (m, 1H), 7.34-7.25 (m, 1H), 5.10 (s, 2H), 4.90-4.83 (m, 4H), 4.20 (s, 1H).

2-Fluoro-3-(5-fluoro-6-{3-[(methoxy-d 3 )imino]azetidin-1-yl}pyridin-3-yl)benzyl carbamimidoylcarbamate maleate (Compound III-88 maleate)

DMSO (5 mL) was added to 2-fluoro-3-(5-fluoro-6-{3-[(methoxy-d 3 )imino]azetidin-1-yl}pyridin-3-yl)benzyl carbamimidoylcarbamate (Compound III-88) 500 mg (1.23 mmol) synthesized in the same manner as in Example 37, and the mixture was heated to 50° C. to give a solution. Next, maleic acid 148 mg (1.28 mmol) was added, and the mixture was cooled to room temperature. Ethyl acetate (20 ml) was dropped thereto, and the mixture was stirred at room temperature for 16 hours. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 527 mg (1.01 mmol, yield 82%) as a white solid.

Mass spectrum (ESI, m/z):408[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.20-8.17 (m, 1H), 7.80-7.71 (m, 1H), 7.63-7.57 (m, 1H), 7.54-7.48 (m, 1H), 7.37-7.31 (m, 1H), 6.08 (s, 2H), 5.32 (s, 2H), 4.90-4.84 (m, 4H).

2-Fluoro-3-(5-fluoro-6-{3-[(methoxy-d 3 )imino]azetidin-1-yl}pyridin-3-yl)benzyl carbamimidoylcarbamate 1/2 succinate (Compound III-88 1/2 succinate)

DMSO (5 mL) was added to 2-fluoro-3-(5-fluoro-6-{3-[(methoxy-d 3 )imino]azetidin-1-yl}pyridin-3-yl)benzyl carbamimidoylcarbamate (Compound III-88) 500 mg (1.23 mmol) synthesized in the same manner as in Example 37, and the mixture was heated to 50° C. to give a solution. Next, succinic acid 146 mg (1.24 mmol) was added, and the mixture was cooled to room temperature. Ethyl acetate (20 ml) was dropped thereto, and the mixture was stirred at room temperature for 20 hours. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 497 mg (1.07 mmol, yield 87%) as a white solid.

Mass spectrum (ESI, m/z):408[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.19-8.16 (m, 1H), 7.78-7.72 (m, 1H), 7.53-7.46 (m, 1H), 7.44-7.37 (m, 1H), 7.32-7.25 (m, 1H), 5.07 (s, 2H), 4.89-4.83 (m, 4H), 2.42 (s, 2H).

2-Fluoro-3-(5-fluoro-6-{3-[(methoxy-d 3 )imino]azetidin-1-yl}pyridin-3-yl)benzyl carbamimidoylcarbamate monosuccinate (Compound III-88 succinate)

DMSO (0.4 mL) was added to 2-fluoro-3-(5-fluoro-6-{3-[(methoxy-d 3 )imino]azetidin-1-yl}pyridin-3-yl)benzyl carbamimidoylcarbamate (Compound III-88) 100 mg (0.245 mmol) synthesized in the same manner as in Example 37, and the mixture was heated to 60° C. to give a solution. Next, succinic acid 29 mg (0.246 mmol) was added, and the mixture was cooled to room temperature. Ethyl acetate (2 ml) was dropped thereto, and the mixture was stirred at room temperature. The precipitated solid was collected by filtration and was dried under reduced pressure to give the title compound 123 mg (0.234 mmol, yield 96%) as a white solid.

Mass spectrum (ESI, m/z):408[M+1] + .

1 H-NMR spectrum (400 MHz, DMSO-d 6 +D 2 O) δ:8.20-8.16 (m, 1H), 7.79-7.72 (m, 1H), 7.54-7.46 (m, 1H), 7.44-7.37 (m, 1H), 7.33-7.24 (m, 1H), 5.07 (s, 2H), 4.90-4.83 (m, 4H), 2.42 (s, 4H).