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|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)|
Patent Claim Types:|
see list of patent claims
|Country||Document Number||Publication Date|
|United States of America||5290934||Mar 01, 1994|
|United States of America||5495020||Feb 27, 1996|
|United States of America||5591744||Jan 07, 1997|
|United States of America||5723648||Mar 03, 1998|
|United States of America||5811576||Sep 22, 1998|
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