申请人:Dainippon Pharmaceutical Co., Ltd.
公开号:US04795751A1
公开(公告)日:1989-01-03
The present invention relates to a quinoline derivative of the formula ##STR1## wherein Z is an amino group or a halogen atom, R.sub.1 is a hydrogen atom or a methyl or ethyl group, R.sub.2 is a hydrogen atom or a methyl or fluoromethyl group, R.sub.3 and R.sub.4 are the same or different and each represents a hydrogen atom or a methyl group, and n is 1 or 2; and esters thereof and salts thereof and processes for preparation thereof. These compounds show excellent antibacterial activity and are useful antibacterial agents.
本发明涉及一种喹啉衍生物,其化学式为##STR1## 其中Z是氨基或卤素原子,R.sub.1是氢原子或甲基或乙基基团,R.sub.2是氢原子或甲基或氟甲基基团,R.sub.3和R.sub.4相同或不同,分别表示氢原子或甲基基团,n为1或2;以及它们的酯和盐及其制备方法。这些化合物表现出优异的抗菌活性,是有用的抗菌剂。