申请人:Kyorin Pharmaceutical Co., Ltd.
公开号:US04980470A1
公开(公告)日:1990-12-25
Quinolonecarboxylic acid derivatives of the following formula: ##STR1## wherein R indicates a hydrogen atom or lower alkyl group, R.sup.1 indicates a lower alkyl group, R.sup.2 indicates a hydrogen atom, amino group or nitro group, X indicates a halogen atom, and Z indicates a halogen atom, piperazino group, N-methylpiperazino group, 3-methylpiperazino group, 3-hydroxypyrrolidino group, or pyrrolidino group of the following formula, ##STR2## (here, n is 0 or 1, R.sup.3 indicates a hydrogen atom or lower alkyl group, R.sup.4 indicates a hydrogen atom, lower alkyl group and R.sup.5 indicates a hydrogen atom, lower alkyl group, acyl group or alkoxycarbonyl group), the hydrates and pharmaceutically acceptable salts thereof are useful as antibacterial agents.
喹诺酮羧酸衍生物的化学式如下:##STR1## 其中 R 表示氢原子或较低的烷基基团,R.sup.1 表示较低的烷基基团,R.sup.2 表示氢原子、氨基团或硝基团,X 表示卤素原子,Z 表示卤素原子、哌嗪基团、N-甲基哌嗪基团、3-甲基哌嗪基团、3-羟基吡咯啉基团或吡咯啉基团,如下所示:##STR2##(这里,n 为 0 或 1,R.sup.3 表示氢原子或较低的烷基基团,R.sup.4 表示氢原子、较低的烷基基团,R.sup.5 表示氢原子、较低的烷基基团、酰基基团或烷氧羰基基团),其水合物和药学上可接受的盐被用作抗菌剂。