Hybrid Pharmacophoric Approach in the Design and Synthesis of Coumarin Linked Pyrazolinyl as Urease Inhibitors, Kinetic Mechanism and Molecular Docking
- PMID: 28574649
- DOI: 10.1002/cbdv.201700035
Hybrid Pharmacophoric Approach in the Design and Synthesis of Coumarin Linked Pyrazolinyl as Urease Inhibitors, Kinetic Mechanism and Molecular Docking
Abstract
The current research article reports the synthesis of coumarinyl pyrazolinyl thioamide derivatives and their biological activity as inhibitors of jack bean urease. The coumarinyl pyrazolinyl thioamides were synthesized by reacting thiosemicarbazide with newly synthesized chalcones to afford the products in good yields and the synthesized compounds were purified by recrystallization. Coumarinyl pyrazolinyl thioamide derivatives 5a - 5q showed significant activity against Urease enzyme and also exhibited good antioxidant potential. The compound 3-(2-oxo-2H-chromen-3-yl)-5-phenyl-4,5-dihydro-1H-pyrazole-1-carbothioamide (5n) was found to be superior agent in the series with an IC50 = 0.358 ± 0.017 μm compared to standard thiourea with an IC50 = 4720 ± 174 μm. To undermine the binding mode of inhibition kinetic studies were performed for most potent derivative and it was found that compound 5n inhibits urease enzyme by non-competitive mode of inhibition. Molecular docking studies were carried out to delineate the binding affinity of the synthesized derivatives.
Keywords: Antioxidant activities; Coumarinyl pyrazolinyl thioamides; Hybrid pharmacophore; Jack bean urease inhibitors; Kinetics; Molecular docking; Synthesis.
© 2017 Wiley-VHCA AG, Zurich, Switzerland.
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