six 7-aminothiazolyl alpha-methoxyimino cephalosporins were found to be most variable in their ability to resist type iv beta-lactamases ( ceftizoxime , most stable and ceftriaxone , least stable ) , to inhibit type i beta-lactamases ( cefotaxime , the best inhibitor and desacetyl-cefotaxime , the least inhibition ) , to inhibit enterobacteriaceae as measured by their minimum inhibitory concentrations ( mics ) , and in their published serum half-lives .
C3536856
cephalosporins
C0007560
ceftizoxime