the beta-lactamase stability and interactions of imipenem were analysed in comparison with those of cefazolin , cefuroxime , cefoxitin , cefotaxime , ceftazidime , mezlocillin , piperacillin and penicillin g for a set of representative beta-lactamases .
C0007562
cefuroxime
C0007554
cefotaxime