against all species of enterobacteriaceae resistant to the first- and second-generation cephalosporins , bmy-28142 had superior inhibitory activity than the newer beta-lactams tested , with intrinsic activity against e. coli and pr . mirabilis slightly less than that of cefotaxime and ceftriaxone .
C0007554
cefotaxime
C0007561
ceftriaxone