Design, Synthesis and Biological Evaluation of Xanthone Derivatives for Possible Treatment of Alzheimer's Disease Based on Multi‐Target Strategy
作者:Aihong Yang、Qiao Yu、Hui Ju、Lulu Song、Xiaodi Kou、Rui Shen
DOI:10.1002/cbdv.202000442
日期:2020.10
(CAS) and the peripheral anionic site (PAS) of AChE. Interestingly, its copper complex showed more significant inhibitory activity for AChE (IC50=0.934±0.002 μM) and antioxidant activity (IC50=1.064±0.003 μM). Molecular dockings were carried out for the four xanthone derivatives in order to further investigate the binding modes. Finally, the blood‐brain barrier (BBB) penetration prediction indicated
合成了四种氧杂蒽酮衍生物,并作为乙酰胆碱酯酶抑制剂 (AChEI) 进行评估,具有金属螯合能力和抗阿尔茨海默病 (AD) 的抗氧化能力。它们中的大多数表现出潜在的乙酰胆碱酯酶 (AChE)、丁基胆碱酯酶 (BuChE) 抑制、抗氧化和金属螯合特性。其中,1-羟基-3-[2-(吡咯烷-1-基)乙氧基]-9H-xanthen-9-one对乙酰胆碱酯酶的抑制能力最强,对乙酰胆碱酯酶的选择性高(IC50=2.403±0.002 μM) AChE 和 IC50=31.221±0.002 μM(BuChE),它也是一种很好的抗氧化剂(IC50=2.662±0.003 μM)。酶动力学研究表明,该化合物是一种混合型抑制剂,可同时与 AChE 的催化阴离子位点 (CAS) 和外周阴离子位点 (PAS) 相互作用。有趣的是,其铜络合物对AChE(IC50=0.934±0.002 μM)和抗氧化活性(IC50=1