Quinolonecarboxylic acid derivatives and process for their preparation
申请人:KYORIN PHARMACEUTICAL CO., LTD.
公开号:EP0184035B1
公开(公告)日:1990-07-25
US4826982A
申请人:——
公开号:US4826982A
公开(公告)日:1989-05-02
Quinolonecarboxylic acid derivatives
申请人:Kyorin Pharmaceutical Co., Ltd.
公开号:US04826982A1
公开(公告)日:1989-05-02
Quinolonecarboxylic acid derivatives of the following formula, ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently hydrogen atom or lower alkyl group; the hydrates or the pharmaceutically acceptable acid addition or alkali salts thereof are useful as an antibacterial agent.