Design, synthesis and biological evaluation of tricyclic pyrazolo[1,5-<i>c</i>][1,3]benzoxazin-5(5<i>H</i>)-one scaffolds as selective BuChE inhibitors
作者:Guo-Liang Qiu、Shao-Sheng He、Shi-Chao Chen、Bo Li、Hui-Hui Wu、Jing Zhang、Wen-Jian Tang
DOI:10.1080/14756366.2018.1488696
日期:2018.1.1
Based on the structural analysis of tricyclic scaffolds as butyrylcholinesterase (BuChE) inhibitors, a series of pyrazolo[1,5-c][1,3]benzoxazin-5(5H)-one derivatives were designed, synthesized and evaluated for their acetylcholinesterase (AChE) and BuChE inhibitory activity. Compounds with 5-carbonyl and 7- or/and 9-halogen substitutions showed potential BuChE inhibitory activity, among which compounds
基于三环支架作为丁酰胆碱酯酶(BuChE)抑制剂的结构分析,设计,合成了一系列吡唑并[1,5-c] [1,3]苯并恶嗪-5(5H)-one衍生物,并对其乙酰胆碱酯酶进行了评估( AChE)和BuChE抑制活性。具有5-羰基和7-或/和9-卤素取代基的化合物显示出潜在的BuChE抑制活性,其中化合物6a,6c和6g显示出最佳的BuChE抑制作用(IC50分别为1.06、1.63和1.63 µM)。结构活性关系表明5-羰基和卤素取代基显着影响BuChE活性。发现化合物6a和6g无毒,亲脂并显示出显着的神经保护活性和对BuChE的混合型抑制作用(Ki分别为7.46和3.09 µM)。