the activity in vitro of the new cephamycin , cefotetan , was compared with that of cephalothin , cefoxitin , cefuroxime and cefotaxime against 226 recently isolated gram-negative pathogens ( 207 enterobacteriaceae and 19 acinetobacter ) .
C0007736
cephamycin
C0007555
cefotetan