Microwave-Assisted Organic Synthesis, structure–activity relationship, kinetics and molecular docking studies of non-cytotoxic benzamide derivatives as selective butyrylcholinesterase inhibitors
作者:Sheeba Wajid、Asma Khatoon、Maria Aqeel Khan、Humaira Zafar、Shama Kanwal、Atta-ur-Rahman、M. Iqbal Choudhary、Fatima Z. Basha
DOI:10.1016/j.bmc.2019.07.015
日期:2019.9
A series of benzamide derivatives 1–12 with various functional groups (–H, –Br, –F, –OCH3, –OC2H5, and –NO2) was synthesized using an economic, and facile Microwave-Assisted Organic Synthesis, and evaluated for acetylcholinesterase (ACHE) and butyrylcholinesterase (BCHE) activity in vitro. Structure–activity relationship showed that the substitution of –Br group influenced the inhibitory activity against
一系列的苯甲酰胺衍生物的1 - 12与各种官能团(-H,-Br,-F,-OCH 3,-OC 2 H ^ 5,和-NO 2)用一种经济合成,并且容易微波辅助有机合成,并评估其在体外的乙酰胆碱酯酶(ACHE)和丁酰胆碱酯酶(BCHE)活性。结构-活性关系表明,-Br基团的取代影响了对BCHE酶的抑制活性。发现合成的化合物是BCHE的选择性抑制剂。另外,所有的化合物1 - 12被认为是无细胞毒性的,相比于标准放线菌酮(IC50 = 0.8±0.2 µM)。其中, 与标准加兰他敏氢溴酸盐(IC 50 = 40.83±0.37 µM)相比,化合物3表现出最有效的BCHE抑制活性(IC 50 = 0.8±0.6 µM)。酶动力学研究表明,化合物1,3 - 4,和7 - 8表现为抑制对BCHE的混合模式中,当化合物2,5 - 6和9表现出非竞争性的抑制模式。分子对接研究进一步强调了这些抑制剂与具有催