LexDanaLexDanabeta
USPatentGranted
B2

Synthetic intermediate of 1-(2-deoxy-2-fluoro-4-thio-β-D-arabinofuranosyl)cytosine, synthetic intermediate of thionucleoside, and method for producing the same

Granted 17 Nov 2015 · 2 office actions

Current assignee: Fujifilm · originally Fujifilm Holdings Corporation

Law firm: Law firm · Log in to unlock

Attorney: Attorney · Log in to unlock

Inventors: Satoshi Shimamura, Makoto Takahashi, Katsuyuki Watanabe, Motomasa Takahashi +8 · Examiner: Bruck Kifle · AU 1622 · TC 1600

Application
14/621,119
filed 12 Feb 2015
Publication
US 20150152131
published 4 Jun 2015
Patent· this page
US 9,187,514
granted 17 Nov 2015
6
Claims
2 independent
77
File wrapper
transactions
2035
20-year term
term adjustment not held
none
Litigation
checked
28
Classifications
C07C69/76, C07C68/06
20
Citations
20 cites · 0 cited by

Life of the patent

7 dated events
⤢ drag to zoom20162018202020222024202620282030203220342036ProsecutionTerm & fees
ProsecutionTerm & feeshover for detail · click to open

Abstract

A compound represented by a formula [1D] as shown below (wherein R 1A , R 1B , R 2A , R 2B , R 3A and R 3B represent a hydrogen atom, an optionally substituted C 1-6 alkyl group, and the like) is useful as an intermediate for producing a thionucleoside, and the production method of the present invention is useful as a method for producing a thionucleoside. [structure]

Claims

6 · 2 independent · depth 3
123456
6 granted claims

Classifications

28 codes
IPC · International Patent Classification
Section A — Human necessities
  • A61K31/7068
Section C — Chemistry; metallurgy
  • C07C69/76
  • C07C68/06
  • C07H17/02
  • C07H15/18
  • C07H23/00
  • C07C303/28
  • C07B53/00
  • C07C69/618
  • C07C69/28
  • C07H1/00
  • C07D409/04
  • C07C45/00
  • C07H19/06
  • C07H13/08
  • C07C69/96
  • C07C67/29
  • C07C309/73
  • C07H7/04
  • C07H15/04
  • C07C69/92
  • C07H19/073
  • C07H13/04
  • C07C69/78
  • C07H19/067
  • C07H15/203
  • C07C249/04
  • C07C251/38

Claim changes

Soon
Coming soonHow the claims changed between publication and grant

See which claims were amended, added or cancelled during examination, with every added and removed word marked.

AmendedAddedCancelledUnchanged

The published claims of this patent are not paired with the granted ones in what we hold.

File wrapper

⤢ drag to zoom2015FebMarAprMayJunJulAugSepOctNovDec2016USPTOApplicantNon-final rejectionResponse after non-final
USPTOApplicanthover for detail · click to open
Pendency
0.8 y
278 days filing → grant
Office actions
1
non-final + final
Responses
2
no RCE
Examiner
Bruck Kifle
art unit 1622 · TC 1600
Law firm
Law firm · Log in to unlock
Citations: 20 back · 0 forward

See the full prosecution history — every USPTO and applicant action on this file, in order.

Log in to unlock

Term & fees

See the term timeline — pendency span, in-force span, the maintenance fees paid and both computed expiry dates.

Log in to unlock

Priority chain

1 priority documents
›Priority documents — 1
TypeDocumentDate
related publicationUS 20150152131 A14 Jun 2015

Validity challenges

See the validity challenges on record — reexaminations, IPRs and PGRs, with their institution decisions and outcomes.

Log in to unlock

Citations

See every patent this one cites and every patent that cites it back — publication, assignee, and how each one was found.

Log in to unlock