Synthesis, in vitro and in silico enzymatic inhibition assays, and toxicity evaluations of new 4,5-diphenylimidazole-N-phenylacetamide derivatives as potent α-glucosidase inhibitors
作者:Maryam Mohammadi-Khanaposhtani、Atefeh Nikraftar、Mohammad Sadegh Asgari、Mehdi Emadi、Somayeh Mojtabavi、Mohammad Ali Faramarzi、Hossein Rastegar、Bagher Larijani、Mohammad Mahdavi
DOI:10.1007/s00044-021-02734-5
日期:2021.6
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
α-葡萄糖苷酶负责肠道中寡糖和二糖的葡萄糖释放,并增加餐后高血糖症。抑制这种酶是控制糖尿病血糖的有益治疗方法。这项研究涉及4,5-二苯基咪唑-N-苯基乙酰胺衍生物7a - 1的设计和合成,以及筛选这些化合物抑制α-葡萄糖苷酶的潜力。 与标准抑制剂阿卡波糖(IC 50 = 750.0 µM)相比,所有合成的化合物均表现出优异的α-葡萄糖苷酶抑制作用(IC 50 = 90.0–598.5 µM)。相反,这些化合物对α-淀粉酶无活性。在合成的化合物中,化合物7h是该库中最有效的抑制剂,并且是αi葡萄糖苷酶的竞争性抑制剂,K i值= 86.3μM。对最有效的化合物进行了对接研究,以评估这些化合物与酶活性位点的结合相互作用,并确定配体-酶复合物的结合能。这项计算机模拟研究的结果与从体外α-葡萄糖苷酶抑制试验获得的结果完全一致。对最有效化合物的对接研究表明,它与α-葡萄糖苷酶活性位点中的重要残基相互