7-Piperazinyl- or 7-Morpholino-4-oxo-quinoline-3-carboxylic acid derivatives, their preparation and their use as antimicrobial agents
申请人:OTSUKA PHARMACEUTICAL CO., LTD.
公开号:EP0287951B1
公开(公告)日:1996-07-03
US5495020A
申请人:——
公开号:US5495020A
公开(公告)日:1996-02-27
US5591744A
申请人:——
公开号:US5591744A
公开(公告)日:1997-01-07
Benzoheterocyclic compounds
申请人:Otsuka Pharmaceutical Company, Limited
公开号:US05591744A1
公开(公告)日:1997-01-07
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 or halogen, R.sup.4 is alkyl or halogen, R is H or alkyl, R.sup.1 and R.sup.3 may be taken together to form ##STR2## wherein R.sup.31 is H or alkyl, and X is halogen, provided that R.sup.3 and R.sup.4 are not simultaneously halogen, and 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.