申请人:Ciba-Geigy Corporation
公开号:US04656165A1
公开(公告)日:1987-04-07
Compounds of the formula ##STR1## in which R.sub.1 is lower alkyl substituted by hydroxy or by protected hydroxy, R.sub.2 represents carboxy or functionally modified carboxy, and R.sub.3 represents amino, lower alkyl-substituted amino, substituted methyleneamino or protected amino, optical isomers of compounds of the formula I, mixtures of these optical isomers, and salts of such compounds of the formula I that have a salt-forming group have antibiotic activity. The compounds of the formula I are manufactured according to processes that are known per se.
公式为##STR1##的化合物,其中R.sub.1是被羟基或保护羟基取代的低碳基,R.sub.2代表羧基或功能修饰的羧基,R.sub.3代表氨基,低碳基取代的氨基,取代亚甲基氨基或保护氨基,公式I的光学异构体,这些光学异构体的混合物,以及具有盐形成基团的公式I的这种化合物的盐具有抗生素活性。公式I的化合物是根据已知的方法制造的。