Design, synthesis, in vitro and in vivo evaluation of novel pyrrolizine-based compounds with potential activity as cholinesterase inhibitors and anti-Alzheimer's agents
作者:Nehad Abou-Elmagd El-Sayed、Awatef El-Said Farag、Manal Abdel Fattah Ezzat、Hulya Akincioglu、İlhami Gülçin、Sahar Mahmoud Abou-Seri
DOI:10.1016/j.bioorg.2019.103312
日期:2019.12
Novel series of pyrrolizine based compounds (4–6 and 9–11) were designed, synthesized and evaluated as potential anti-Alzheimer agents. Most of the tested compounds showed selectivity to hAChE over hBChE and effectively inhibited self–induced amyloid beta aggregation in vitro. Among these derivatives, compound 10 displayed high selectivity towards hAChE (Ki = 1.47 ± 0.63 μM for hAChE and Ki = 40.15 ± 3
设计,合成和评估了一系列新型的基于吡咯嗪的化合物(4 – 6和9 – 11)作为潜在的抗阿尔茨海默病药物。大多数测试化合物对h AChE的选择性均超过h BChE,并在体外有效抑制了自我诱导的淀粉样β聚集。在这些衍生物中,化合物10显示高选择性朝ħ乙酰胆碱酯酶(KI = 1.47±0.63μM为ħ的AChE和Ki = 40.15±3.31μM为ħ的BChE)。但是,化合物11对h AChE和h均显示双重抑制作用BChE在亚微摩尔范围内(Ki分别为0.40±0.03和0.129±0.009μM)。新配体的动力学研究表明,h AChE和h BChE均具有竞争性抑制类型。此外,化合物10和11对多奈哌齐对人神经母细胞瘤(SH-SY5Y)和正常人肝细胞(THLE2)的细胞毒性较低或相当。体内研究证实,这两种化合物均能够改善东-碱诱导的AD小鼠的认知功能障碍。最后,在h AChE活性位点对化合物10