The compounds of the general formula (I) wherein R
1
denotes a pharmaceutically acceptable side chain radical as used conventionally in the field of cephalosporins and wherein R
2
denotes a pharmaceutically acceptable group which is bonded to the remaining part of the molecule by an oxygen-carbon single bond or a nitrogen-carbon single bond, and their pharmaceutically acceptable salts, esters and amide derivatives are effective antibiotics.
1
通式(I)的化合物,其中R1表示在
头孢菌素领域中惯常使用的药用可接受的侧链基团,而R2表示通过氧-碳单键或氮-碳单键与分子的其余部分连接的药用可接受的基团,以及它们的药用可接受的盐、酯和酰胺衍
生物是有效的抗生素。