in this study we have evaluated the antibacterial activity of six cephalosporins of the first generation ( cephacetrile , cephalothin , cefazolin , cephaloridin , cephalexin , cephradine ) two cephalosporin of the second generation ( cefoxitin and cefuroxime ) and two of the third generation ( cefotaxime and cefoperazone ) against 66 clinical bacterial isolates .
C0007714
cephacetrile
C0007554
cefotaxime