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.
本发明的化合物是
头孢菌素,其在7位具有不同的酰基取代基和在
头孢菌素核3位具有
尿素烷基取代的四氮杂
硫甲基基团,以及其制备的中间体。7-酰基化合物具有抗菌活性。