Disclosed are antibiotic cephalosporins (I) of the formula: ##STR1## Wherein the stylized radical attached to the 7-amino nitrogen of the cephalosporin moiety represents a nitrogen-containing heterocyclic group (mono- or polycyclic); R is, inter alia, hydrogen, alkyl, heterocyclylalkyl, aryl, alkenyl, aralkyl, --NR.sub.2, --OR, COOR, CONR.sub.2 or CN; R.sup.o is H or CH.sub.3 ; and R.sup.2 is H, or loweralkoxyl: Also disclosed are the pharmaceutically acceptable salt and ester derivatives of I; processes for the preparation of such compounds, pharmaceutical compositions comprising such compounds; and methods of treatment comprising administering such compounds and compositions when an antibiotic effect is indicated.
揭示了
化学式为:##STR1## 的抗生素
头孢菌素(I),其中连接到
头孢菌素部分的7-
氨基氮的图式化基团代表含氮杂环基团(单环或多环);R包括氢、烷基、杂环烷基、芳基、烯基、芳基烷基、--NR.sub.2、--OR、COOR、CONR.sub.2或CN;R.sup.o为H或CH.sub.3;R.sup.2为H或较低烷氧基;还揭示了化合物I的药学上可接受的盐和酯衍
生物;制备这种化合物的方法;包含这种化合物的药物组合物;以及在需要抗生素作用时,给予这种化合物和组合物的治疗方法。