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Serving leading biopharmaceutical companies globally:

Farmers Insurance
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Generated: November 22, 2017

DrugPatentWatch Database Preview

Details for Patent: 5,317,016

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Summary for Patent: 5,317,016

Title: Pyrrolidylthiocarbapenem derivative
Abstract:A pyrrolidylthiocarbapenem derivative represented by Formula I is provided: ##STR1## wherein R.sup.1 is hydrogen or lower alkyl; R.sup.2, R.sup.3 and R.sup.4 are hydrogen, lower alkyl which can be substituted or an amino protecting group independently, or R.sup.2 and R.sup.3 together with a nitrogen atom to which R.sup.2 and R.sup.3 are bonded form a saturated or unsaturated cyclic group, or R.sup.2 and R.sup.4, or R.sup.3 and R.sup.4 together with two nitrogen atoms and one sulfur atom in the sufamide group form a saturated or unsaturated cyclic group; each cyclic group can further include at least one atom selected from the group consisting of oxygen, sulfur and nitrogen, and each cyclic group can be substituted; X.sup.1 is hydrogen or a hydroxy protecting group; X.sup.2 is hydrogen, a carboxy protecting group, an ammonio group, an alkali metal or an alkaline-earth metal; and Y.sup.2 is hydrogen or an amino protecting group.
Inventor(s): Nishitani; Yasuhiro (Osaka, JP), Irie; Tadashi (Osaka, JP)
Assignee: Shionogi Seiyaku Kabushiki Kaisha (Osaka, JP)
Application Number:07/929,961
Patent Claim Types:
see list of patent claims
Compound; Use;

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Foreign Priority and PCT Information for Patent: 5,317,016

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan3-207972Aug 20, 1991
Japan4-35366Feb 21, 1992

International Patent Family for Patent: 5,317,016

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
China1071428► Subscribe
China1032257► Subscribe
China1113233► Subscribe
China1034571► Subscribe
China1078718► Subscribe
China1052474► Subscribe
China1257068► Subscribe
China1222508► Subscribe
Germany69231834► Subscribe
Germany69307355► Subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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Serving leading biopharmaceutical companies globally:

Fish and Richardson
Chinese Patent Office
Daiichi Sankyo
Federal Trade Commission

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