Novel quinoline derivatives as potent in vitro α-glucosidase inhibitors: in silico studies and SAR predictions
作者:Muhammad Taha、Nor Hadiani Ismail、Syahrul Imran、Abdul Wadood、Fazal Rahim、Muhammad Ali、Ashfaq Ur Rehman
DOI:10.1039/c5md00280j
日期:——
two most active compounds 24 and 27 corroborated that compound 24 adopted a linear position to optimally fit into the binding site of α-glucosidase. Observations for the best position of compound 24 showed a total of four interactions towards catalytically active site residues of α-glucosidase involving amino acid residues such as Phe-177 and Asp-214. The oxadiazole ring of compound 24 interacted with
一系列新的喹啉衍生物6-30被确定为有效的α-葡萄糖苷酶抑制剂。这些类似物在2.60和102.12μM之间的范围内表现出抑制电位(IC 50值)。在该系列中,发现与α-葡糖苷酶相比,化合物24(2.60±0.01μM),27(2.60±0.01μM)和20(2.86±0.01μM)具有异常强大的功效(> 14倍于标准)。标准阿卡波糖(IC 50 = 38.25±0.12μM)。对两种活性最高的化合物24和27的分子对接研究证实了该化合物24采用线性位置以最佳地适合α-葡萄糖苷酶的结合位点。对化合物24的最佳位置的观察表明,与α-葡糖苷酶的催化活性位点残基有关的共有四个相互作用,涉及氨基酸残基,例如Phe-177和Asp-214。化合物24的恶二唑环与His-279相互作用。化合物27形成一个氢键相互作用(N-甲基乙酰胺)和三个芳烃-芳烃相互作用(喹啉和1,3,4-恶二唑部分)。化合物27的