Neurobehavioral investigation and acetylcholinesterase inhibitory activity study for some new coumarin derivatives
作者:Walaa R. Mahmoud、Yassin M. Nissan、Menna M. Elsawah、Rana H. Refaey、Mai F. Ragab、Kamilia M. Amin
DOI:10.1016/j.ejmech.2019.111651
日期:2019.11
compounds were screened for their acetylcholinesterase inhibitory activity where compound 5b proved to be the most potent AChE inhibitor with (IC50 = 37 nM) compared to tacrine and donepezil (IC50 = 55.0 and 59.0 nM, respectively). Six compounds 2f, 2g, 4b, 5b, 8b and 9b revealed superior activity over donepezil and a conclusive structure activity relationship study was conducted explaining the obtained
根据两种方案合成了二十四种基于6-氨基香豆素的衍生物。筛选所有化合物的乙酰胆碱酯酶抑制活性,其中与他克林和多奈哌齐相比,化合物5b被证明是最有效的AChE抑制剂(IC50 = 37 nM)(IC50 = 55.0和59.0 nM)。六种化合物2f,2g,4b,5b,8b和9b表现出优于多奈哌齐的活性,并进行了结论性结构活性关系研究,解释了所得结果。此外,研究了化合物2f,4b和5b在体内的神经行为作用。使用多奈哌齐作为参考药物,所有测试的化合物均显示出神经行为实验的改善。另外,化合物2f,4b和5b能够以与多奈哌齐相当的方式减少淀粉样β42的细胞外沉积。通过AChE活性位点中的分子对接以及分子动力学模拟研究,通过计算机对合成化合物的结合模式进行了评估。生成了新合成化合物的药效团模型。