a new semisynthetic cephalosporin antibiotic designated 7-beta- ( 1-benzylpyridinium-4-yl ) -amino-3- [ ( ( 1-methyl-1h-tetrazol-5-yl ) thio ] methyl ) ceph-3-em-4-carboxylate ( l-640,876 ) was compared for antibacterial activity in vitro with mecillinam , cefoxitin and cefotaxime .
C0279516
antibacterial
C0007557
cefoxitin