2-Arylbenzofurans from Artocarpus lakoocha and methyl ether analogs with potent cholinesterase inhibitory activity
作者:Umalee Namdaung、Anan Athipornchai、Thongchai Khammee、Mayuso Kuno、Sunit Suksamrarn
DOI:10.1016/j.ejmech.2017.10.019
日期:2018.1
Compounds 4, 6 and 7 exhibited more potent AChE inhibitory activity (IC50 = 0.87–1.10 μM) than the reference drug, galantamine. Compounds 4, 8 and 9 displayed greater BChE inhibition than the standard drug. The preferential inhibition of BChE over AChE indicated that 4 also showed a promising dual AChE and BChE inhibitor. The synthetic mono-methylated analogs 4a-c and 6a-b were found to be good BChE inhibitors
体外对面包果(Artocarpus lakoocha)根皮提取物的乙酰胆碱酯酶(AChE)和丁酰胆碱酯酶(BChE)抑制活性的筛选显示出有趣的结果。生物测定法指导的分离导致分离出两个新的(1和2)和六个已知的2-芳基苯并呋喃3 – 8,以及一个Stilbenoid 9和一个黄酮10。通过UV,IR,1D-和2D-NMR和MS光谱数据分析阐明了分离的化合物的结构。化合物4,6和7表现出更有效的乙酰胆碱酯酶抑制活性(IC 50 = 0.87-1.10 μ M)比参考药物,加兰他敏。化合物4,8和9中显示更大的BChE抑制比标准药物。BChE优于AChE的抑制作用表明4还显示出有前途的双重AChE和BChE抑制剂。合成单甲基化类似物4A-C和6A-B被认为是良好的BChE抑制剂与IC 50个值范围为0.31 1.11之间和 μ基于M上的对接研究中,化合物4和6是公配合在催化三联AChE。化合物