Multifunctional thioxanthone derivatives with acetylcholinesterase, monoamine oxidases and β -amyloid aggregation inhibitory activities as potential agents against Alzheimer’s disease
作者:Li Luo、Yan Li、Xiaoming Qiang、Zhongcheng Cao、Rui Xu、Xia Yang、Ganyuan Xiao、Qing Song、Zhenghuai Tan、Yong Deng
DOI:10.1016/j.bmc.2017.02.027
日期:2017.3
A series of 1-hydroxyl-3-aminoalkoxy-thioxanthone derivatives were designed, synthesized and evaluated as potential multifunctional agents against Alzheimer's disease (AD). The results indicated that most of these compounds exhibited good AChE and MAOs inhibitory activities, significant inhibition of self- and Cu2+-induced Aβ1-42 aggregation, and moderate to good antioxidant activities. Specifically
设计,合成和评估了一系列1-羟基-3-氨基烷氧基-噻吨酮衍生物,作为对抗阿尔茨海默氏病(AD)的潜在多功能剂。结果表明,这些化合物大多数显示出良好的AChE和MAOs抑制活性,显着抑制自身和Cu2 +诱导的Aβ1-42聚集,并且具有中等至良好的抗氧化活性。具体而言,化合物9e对AChE(IC50 = 0.59±0.02μM),MAO-A和MAO-B(IC50 = 1.01±0.02μM和0.90±0.01μM)表现出很高的抑制能力,对自身和Cu2 +的阻断效率都很高。诱导的Aβ1-42聚集(在25μM时分别为74.8±1.2%和87.7±1.9%),良好的金属螯合性能和对SH-SY5Y细胞的低毒性。此外,动力学和分子建模研究表明,化合物9e同时与AChE的催化活性位点和外围阴离子位点结合,并且可以穿透BBB。总的来说,这些结果表明9e可能是用于AD治疗的进一步开发的潜在多功能剂。