The development of 2-acetylphenol-donepezil hybrids as multifunctional agents for the treatment of Alzheimer’s disease
作者:Gaofeng Zhu、Keren Wang、Jian Shi、Pengfei Zhang、Dan Yang、Xiaotian Fan、Ziyi Zhang、Wenmin Liu、Zhipei Sang
DOI:10.1016/j.bmcl.2019.126625
日期:2019.10
A series of 2-acetylphenol-donepezil hybrids was designed and synthesized based on multi-target-directed ligands strategy. The biological activities were evaluated by AChE/BChE inhibition and MAO-A/MAO-B inhibition. The results revealed that the tertiary amines and methylene chain length significantly affected the eeAChE inhibitory potency, in particular, compound TM-14 showed the best eeAChE inhibitory
基于多目标定向配体策略设计并合成了一系列2-乙酰基苯酚-多奈哌齐杂种。通过AChE / BChE抑制和MAO-A / MAO-B抑制来评估生物学活性。结果表明,叔胺和亚甲基链长度显着影响eeAChE抑制能力,特别是化合物TM-14表现出最佳的ee AChE抑制活性,IC 50值为2.9μM,此外,AChE抑制的动力学分析和对接研究表明,TM-14可以同时与AChE的催化活性位点和外围阴离子位点结合。此外,化合物TM-14是一种选择性金属螯合剂,可形成1:1TM-14 -Cu 2+络合物。结构活性关系还表明,O-烷基胺片段显着降低了hMAO-B抑制活性,化合物TM-2表现出强大的hMAO-B抑制活性(IC 50 = 6.8μM ),这受到分子对接研究的支持。更有趣的是,化合物TM-14和TM-2可以在体外穿过血脑屏障。因此,2-乙酰基苯酚-多奈哌齐杂种的结构-活性关系可以鼓励开发具有选择性