Design, synthesis and biological evaluation of new coumarin-dithiocarbamate hybrids as multifunctional agents for the treatment of Alzheimer's disease
作者:Neng Jiang、Qichun Huang、Jing Liu、Ningsheng Liang、Qing Li、Qinghua Li、Sai-Sai Xie
DOI:10.1016/j.ejmech.2018.01.055
日期:2018.2
A series of new coumarin-dithiocarbamate hybrids were designed, synthesized and evaluated as multifunctional agents for the treatment of Alzheimer's Disease (AD). The biological assays indicated that most of them showed potent inhibition and excellent selectivity towards acetylcholinesterase (AChE), and could inhibit self-induced β-amyloid (Aβ) aggregation. Especially, compound 4n presented the highest
设计,合成和评估了一系列新型香豆素-二硫代氨基甲酸酯杂化物,以作为治疗阿尔茨海默氏病(AD)的多功能剂。生物学测定表明,它们大多数显示出对乙酰胆碱酯酶(AChE)的有效抑制作用和极好的选择性,并且可以抑制自诱导的β-淀粉样蛋白(Aβ)聚集。尤其是,化合物4n表现出最高的抑制AChE的能力(IC50,hAChE为0.027μM)和对Aβ聚集的良好抑制(25μM时为40.19%)。动力学和分子建模研究表明,4n是一种混合型抑制剂,可以同时与AChE的催化活性位点(CAS)和外围阴离子位点(PAS)相互作用。此外,它对SH-SY5Y神经母细胞瘤细胞具有特异性的金属螯合能力,良好的血脑屏障通透性和低毒性。此外,化合物4n在高达1000 mg / kg的剂量下对小鼠没有任何急性毒性,并且可以逆转东pol碱诱导的AD小鼠的认知功能障碍。据我们所知,4n是第一个报道的具有多功能活性的二硫代氨基甲酸酯衍生