Inventor

Yunosuke Nagase

Inventor

Shiki, JP

Overview

1989–1995

Patent span

Chemistry

Primary field (CPC C)

Patents· 6 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C07Dprimary

C07DHeterocyclic compounds100%

PatentTitleYear

5,412,103'Process for preparing (1R,5S,6S)-2-[(6,7-dihydro-5H-pyrazolo [1,2-A][1,2,4]triazolium-6-yl)]thio-6-[(R)-1-hydroxyethyl]-1-methyl-carb apenem-3-carboxylate and starting materials thereof'1995 5,241,073'Process for preparing (1R,5S,6S)-2-[(6,7-dihydro-5H-pyrazolo [1,2-a][1,2,4]triazolium-6-yl)]thio-6-[(R)-1-hydroxyethyl]-1-methyl-carb apenem-3-carboxylate and starting materials thereof'1993 4,990,613'(1R,5S,6S)-2-[(6,7-dih ydro-5H-pyrazolo[1,2-a][1,2,4]triazolium-6-yl)]thio-6-[R-1-hydroxyethyl]- 1-methyl-carbapenem-3-carboxylate and intermediate therefor'1991 4,925,836'Antibacterially effective methods and compositions based upon (1R,5S,6S)-2-[(6,7-dihydro-5H-pyrazolo[1,2-a][1,2,4]triazolium-6-yl)]thi o-6-[R-1-hydroxyethyl]-1-methyl-carbapenem-3-caroxylate and salts therefore'1990 4,925,935'Methods for the manufacture of (1R,5S,6S)-2-[(6,7-dihydro-5H-pyrazolo[1,2-a][1,2,4]triazolium-6-yl]thio -6-[R-1-hydroxyethyl]-1-methyl-carbapenem-3-carboxylate'1990 4,866,171'(1R,5S,6S)-2-[(6,7-dihydr o-5H-pyrazolo[1,2-a][1,2,4]triazolium-6-yl)]thio-6-[R-1-hydroxyethyl]-1-m ethyl-carbapenum-3-carboxylate'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1995Patents assigned to LEDERLE JAPAN LTD (5)· patent assignee history

1989–1991Based in Shiki, JP· patent location history

1993Patents assigned to LEDERLE JAPAN (1)· patent assignee history

1993–1995Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
LEDERLE JAPAN LTD	5	1989–1995
LEDERLE JAPAN	1	1993

Locations

Location	Patents	Span
Shiki, JP	4	1989–1991
Tokyo, JP	2	1993–1995