Abstract

A novel series of 5,6-dichloro-2-methyl-1H-benzimidazole derivatives was synthesized and then screened for their urease inhibitory activity. All compounds showed more potent inhibitory activity in the range of IC50 = 0.0294 ± 0.0015–0.1494 ± 0.0041 µM than thiourea (IC50 = 0.5117 ± 0.0159 µM), as a reference inhibitor. Among all the tested compounds, the compound 15 (IC50 = 0.0294 ± 0.0015 µM) having strong electron-withdrawing nitro group on the phenyl ring was recorded as the most potent inhibitor of urease. All compounds were docked at the active sites of the Jack bean urease enzyme to investigate the reason of the inhibitory activity and the possible binding interactions of enzyme-ligand complexes.

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