7-Acyl-3-(ureidoalkyl substituted tetrazolylthiomethyl) cephalosporins, antibacterial compositions containing them, and methods of treating bacterial infections using them

摘要

The compounds of this invention are cephalosporins having various acyl substituents at the 7-position and an ureidoalkyl substituted tetrazolylthiomethyl group at the 3-position of the cephem nucleus and intermediates for the preparation thereof. The 7-acylated compounds have antibacterial activity.