Xiao Ganyuan, Li Yan, Qiang Xiaoming, Xu Rui, Zheng Yunxiaozhu, Cao Zhongcheng, Luo Li, Yang Xia, Sang Zhipei, Su Fu, Deng Yong
Department of Medicinal Chemistry, Key Laboratory of Drug Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China.
College of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, China.
Bioorg Med Chem. 2017 Feb 1;25(3):1030-1041. doi: 10.1016/j.bmc.2016.12.013. Epub 2016 Dec 9.
A series of 4'-aminochalcone-revastigmine hybrids were designed, synthesized and evaluated as multifunctional agents for the treatment of Alzheimer's disease. The results showed that most of these compounds exhibited good multifunctional activities. In particular, compound 6c displayed the best inhibitory potency on acetylcholinesterase (IC=4.91μM), and significant antioxidative activity with a value 2.83-fold of Trolox. The kinetic analysis of AChE inhibition revealed that 6c showed mixed-type inhibition, binding simultaneously to the catalytic active site and peripheral anionic site of AChE. In addition, 6c inhibited self-induced Aβ aggregation and Cu-induced Aβ aggregation by 89.5% and 79.7% at 25μM respectively, as well as acted as a selective monoamine oxidase B inhibitor (IC=0.29μM) and a selective biometal chelator. Furthermore, 6c could cross the blood-brain barrier in vitro. Based on these results, Compound 6c could be considered as a very promising lead compound for Alzheimer's disease.
设计、合成并评估了一系列4'-氨基查尔酮-雷瓦司的明杂合物,作为治疗阿尔茨海默病的多功能药物。结果表明,这些化合物中的大多数表现出良好的多功能活性。特别是,化合物6c对乙酰胆碱酯酶表现出最佳抑制效力(IC = 4.91μM),并且具有显著的抗氧化活性,其值为Trolox的2.83倍。对乙酰胆碱酯酶抑制的动力学分析表明,6c表现出混合型抑制,同时与乙酰胆碱酯酶的催化活性位点和外周阴离子位点结合。此外,6c在25μM时分别抑制自身诱导的Aβ聚集和铜诱导的Aβ聚集89.5%和79.7%,并且还作为选择性单胺氧化酶B抑制剂(IC = 0.29μM)和选择性生物金属螯合剂。此外,6c在体外能够穿过血脑屏障。基于这些结果,化合物6c可被认为是一种非常有前景的阿尔茨海默病先导化合物。