3-(SUBSTITUTED THIO)CEPHALOSPORINS,DERIVATIVES AND NUCLEAR ANALOGUES THEREOF

摘要

Disclosed is a class of cephalosporins including the carba, aza and oxa nuclear analogues thereof which bear at the 3-position a substituted thio substituent; such compounds are useful as antibiotics. Also disclosed are 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.