Synthesis and β-Lactamase Inhibitory Activity of 6-((1- Heteroarylthioethyl-1,2,3-triazol-4-yl)methylene)penam Sulfones.
1995
The synthesis of β-lactamase inhibitory activity of a series of sodium 6-[(1-heteroarylthioethyl-1, 2, 3-triazol-4-yl)methylene]pemcillanate 1, 1-dioxides are described. Their activity was compared with tazobactam and sulbactam. The Z-isomers were more active than the E-isomers. The in vitro activity of the Z-isomers of the phenylthiadiazole derivatives (13a and 15a) was better than sulbactam against the tested β-lactamases and comparable to tazobactam especially against TEM-2 and cephalosporinase. But their synergistic activity with five antibiotics was inferior to tazobactam.
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