申请人:Merck & Co., Inc.
公开号:US04255424A1
公开(公告)日:1981-03-10
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; A is conventionally known in the cephalosporin art; and R.sup.2 is H, or loweralkoxyl; X is O, CH.sub.2, or NR.sup.7 (R.sup.7 is, inter alia, hydrogen, alkyl or aralkyl. 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.
本文揭示的是具有以下结构的抗生素头孢菌素(I):其中连接到头孢菌素基团的7-氨基氮上的样式化基团代表含氮杂环基团(单环或多环);R是氢、烷基、杂环烷基、芳基、烯基、芳基烷基、--NR.sub.2、--OR、COOR、CONR.sub.2或CN等;A在头孢菌素领域中是公认的;R.sup.2是H或较低烷氧基;X是O、CH.sub.2或NR.sup.7(R.sup.7是氢、烷基或芳基等)。还揭示了I的药学上可接受的盐和酯衍生物;制备这类化合物的方法;包含这类化合物的药物组合物;以及在需要抗生素作用时,通过给予这类化合物和组合物进行治疗的方法。