Ultrasound-assisted synthesis of novel chalcone, heterochalcone and bis-chalcone derivatives and the evaluation of their antioxidant properties and as acetylcholinesterase inhibitors
作者:Efraín Polo、Nicol Ibarra-Arellano、Luis Prent-Peñaloza、Alejandro Morales-Bayuelo、José Henao、Antonio Galdámez、Margarita Gutiérrez
DOI:10.1016/j.bioorg.2019.103034
日期:2019.9
The chalcone and bis-chalcone derivatives have been synthesized under sonication conditions via Claisen-Schmidt condensation with KOH in ethanol at room temperature (20-89%). The structures were established on the basis of NMR, IR, Single-crystal XRD, and MS. The best compound 3u had inhibitory activity (IC50 = 7.50 µM). The synthesis, the antioxidative properties, chemical reactivity descriptors supported
查尔酮和双查尔酮衍生物是在超声条件下,通过Claisen-Schmidt与KOH在乙醇中于室温下缩合(20-89%)合成的。基于NMR,IR,单晶XRD和MS建立结构。最好的化合物3u具有抑制活性(IC50 = 7.50 µM)。通过分子对接吗啉-查耳酮和喹啉-查耳酮预测了合成,抗氧化性能,密度泛函理论(DFT)支持的化学反应性描述子,乙酰胆碱酯酶(AChE)抑制及其潜在的结合模式和亲和力。还报道了一系列的双查耳酮。化合物3u的分子对接和酶动力学研究表明,它同时与AChE的催化活性位点(CAS)和外围阴离子位点(PAS)结合。