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Generated: October 18, 2017

DrugPatentWatch Database Preview

Details for Patent: 5,563,138

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Summary for Patent: 5,563,138

Title: Benzoheterocyclic compounds
Abstract:Novel 4-oxoquinoline-3-carboxylic acid compounds of the formula: ##STR1## wherein R.sup.1 is cyclopropyl which may have 1 to 3 substituents of alkyl and halogen; phenyl which may be substituted by 1 to 3 substituents of alkoxy, halogen and OH; alkyl which may be substituted by halogen, alkanoyloxy or OH; alkenyl; or thienyl, R.sup.2 is 5- to 9-membered saturated or unsaturated heterocyclic ring which may be sustituted, R.sup.3 is alkyl, R is H or alkyl, and X is halogen, and pharmaceutically acceptable salts thereof, said compounds having excellent antimicrobial activity and hence being useful as an antimicrobial agent, and a pharmaceutical composition containing said compound as an active ingredient.
Inventor(s): Ueda; Hiraki (Mishima, JP), Miyamoto; Hisashi (Tokushima, JP), Yamashita; Hiroshi (Tokushima, JP), Tone; Hitoshi (Itano, JP)
Assignee: Otsuka Pharmaceutical Company, Limited (Tokyo, JP)
Application Number:07/179,239
Patent Claim Types:
see list of patent claims
Compound; Composition;

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Foreign Priority and PCT Information for Patent: 5,563,138

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan62-94198Apr 16, 1987
Japan62-102351Apr 24, 1987
Japan62-108361Apr 30, 1987
Japan62-126598May 22, 1987
Japan62-149544Jun 16, 1987
Japan62-176126Jul 14, 1987
Japan62-283776Nov 09, 1987
Japan62-287108Nov 12, 1987

International Patent Family for Patent: 5,563,138

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
European Patent Office0287951► SubscribeSPC/GB98/016United Kingdom► Subscribe
European Patent Office0287951► SubscribeC980011Netherlands► Subscribe
European Patent Office0565132► Subscribe
European Patent Office0823413► Subscribe
Denmark170640► Subscribe
Denmark207688► Subscribe
Germany3856515► Subscribe
Germany19775083► Subscribe
Denmark101492► Subscribe
Denmark171820► 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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Boehringer Ingelheim

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