Table 1.
Inhibition of compounds 2–7 on PBP and β-lactamases.
IC50 μM | ||||||||
---|---|---|---|---|---|---|---|---|
Enzyme | 1 | 2 | 3 | 4 | 5 | 6 | 7 | penicillin G |
DD-carboxypeptidase 64-575 | 176 ± 2.38 | 0.158 ± 0.002 | 0.052 ± 0.001 | 0.133 ± 0.002 | 0.027 ± 0.000 | 0.083 ± 0.003 | 0.081 0.003 ± | 0.153 ± 0.002 |
CTX-M-14 | 1620 ± 144 | 31 ± 5 | 44 ± 4 | 716 ± 108 | 7 ± 1 | 36 ± 4 | 363 ± 49 | nd* |
B. cereus 569/H9 | 4661 ± 422 | 142 ± 28 | 200 ± 25 | 82 ± 12 | 117 10 ± | 126 ± 27 | 65 ± 5 | nd |
nd, not determined.