申请人:Beecham Group Limited
公开号:US04401595A1
公开(公告)日:1983-08-30
Compounds are provided of the formula (II): ##STR1## wherein R.sub.1 is a group such that CO.sub.2 R.sub.1 is an ester group and A.sub.1 is a hydrogen atom or a methyl group. These compounds possess antibacterial activity. The preparation of these compounds is described.
提供以下化合物的公式(II):##STR1## 其中R₁是一个基团,使得CO₂R₁是一个酯基团,并且A₁是一个氢原子或甲基。这些化合物具有抗菌活性。这些化合物的制备方法如下所述。