Synthesis and β-glucuronidase inhibitory activity of 2-arylquinazolin-4(3H)-ones

Add time:07/16/2019    Source:sciencedirect.com

2-Arylquinazolin-4(3H)-ones 1–25 were synthesized by reacting anthranilamide with various benzaldehydes using CuCl2·2H2O as a catalyst in ethanol under reflux. Synthetic 2-arylquinazolin-4(3H)-ones 1–25 were evaluated for their β-glucuronidase inhibitory potential. A trend of inhibition IC50 against the enzyme in the range of 0.6–198.2 μM, was observed and compared with the standard d-saccharic acid 1,4-lactone (IC50 = 45.75 ± 2.16 μM). Compounds 13, 19, 4, 12, 14, 22, 23, 25, 15, 8, 17, 11, 21, 1, 3, 18, 9, 2, and 24 with the IC50 values within the range of 0.6–44.0 μM, indicated that the compounds have superior activity than the standard. The compounds showed no cytotoxic effects against PC-3 cells. A structure–activity relationship is established.

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