the minimal inhibitory concentrations that inhibited 90 % of the 7 alpha-methoxy cephalosporins , cefoxitin , cefmetazole , moxalactam , and cefotetan , against the isolates were 4 , 8 , 8 , and 16 micrograms/ml , respectively , and these antibiotics were entirely resistant to hydrolysis by beta-lactamases ( 0.10 mumol/h per mg of protein ) of the isolates .
C3536856
cephalosporins
C0007557
cefoxitin