Assembling a Cinnamyl Pharmacophore in the C3-Position of Substituted Isatins via Microwave-Assisted Synthesis: Development of a New Class of Monoamine Oxidase-B Inhibitors for the Treatment of Parkinson’s Disease
作者:Amritha Manoharan、Jong Min Oh、Feba Benny、Sunil Kumar、Mohamed A. Abdelgawad、Mohammed M. Ghoneim、Mohamed E. Shaker、Mohamed El-Sherbiny、Hailah M. Almohaimeed、Prashant Gahtori、Hoon Kim、Bijo Mathew
DOI:10.3390/molecules28166167
日期:——
reversibility and enzyme kinetics experiments, IHC3 was a reversible inhibitor with a Ki value of 0.51 ± 0.15 μM for MAO-B. Further, it was observed that IHC3 greatly decreased the cell death caused by rotenone in SH-SY5Y neuroblastoma cells. A molecular docking study of the lead molecule was also performed to determine hypothetical interactions in the enzyme-binding cavity. These findings suggest that IHC3
单胺氧化酶(MAO,EC 1.4.3.4)负责内源性和外源性胺的氧化分解,并以 MAO-A 和 MAO-B 异构体存在。通过亲核加成反应合成了 18 种基于吲哚的亚苯基衍生物,包括三个子系列:IHC、IHMC 和 IHNC,并开发并检查了它们抑制 MAO 的能力。其中,化合物IHC3表现出较强的MAO-B抑制作用,IC50(半最大抑制浓度)值为1.672 μM,其次是IHC2(IC50 = 16.934 μM)。此外,IHC3 显示出最高的选择性指数 (SI) 值 >23.92。IHC3 的有效性低于参考帕吉林 (0.14 μM);然而,SI 值高于帕吉林 (17.16)。从结构上看,IHC(B 环中的 -H)子系列表现出比其他子系列相对更强的 MAO-B 抑制作用。在 IHC 系列中,IHC3(A 环中的 -F)在 2 处表现出比其他取代衍生物更强的 MAO-B 抑制作用,顺序为 -F >