Medicinal Chemistry Research p. 1273 - 1283 (2021)
Update date:2022-08-29
Topics:
Mohammadi-Khanaposhtani, Maryam
Nikraftar, Atefeh
Asgari, Mohammad Sadegh
Emadi, Mehdi
Mojtabavi, Somayeh
Faramarzi, Mohammad Ali
Rastegar, Hossein
Larijani, Bagher
Mahdavi, Mohammad
α-Glucosidase is responsible for glucose release of oligosaccharides and disaccharides in the intestine and increase postprandial hyperglycemia. Inhibition of this enzyme is a beneficial therapeutic method for glycemic control in diabetes. This study deals with the design and synthesis of 4,5-diphenylimidazole-N-phenylacetamide derivatives 7a–l and the screen of these compounds for their potential for α-glucosidase inhibition. All the synthesized compounds exhibited superior α-glucosidase inhibition (IC50 = 90.0–598.5 μM) as compared to standard inhibitor acarbose (IC50 = 750.0 μM). In contrast, these compounds were inactive against α-amylase. Among the synthesized compounds, compound 7h was the most potent inhibitor of this library and was a competitive inhibitor into α-glucosidase with Ki value = 86.3 μM. Docking study of the most potent compounds was performed to evaluate the binding interactions of these compounds with the active site of enzyme and to determine of binding energies of ligand–enzyme complexes. The results of this in silico study are in complete agreement with the results obtained from in vitro α-glucosidase inhibition assay. Docking study of the most potent compound demonstrated that it interacted with important residues in the active site of α-glucosidase. In vitro cytotoxic activity of the most potent compounds and in silico druglikeness/ADME/toxicity study of these compounds were evaluated.
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