Tacrine, Trolox and Tryptoline as Lead Compounds for the Design and Synthesis of Multi-target Agents for Alzheimer’s Disease Therapy
作者:Gerard A. K. Teponnou、Jacques Joubert、Sarel F. Malan
DOI:10.2174/1874104501711010024
日期:2017.1.31
The versatile biological activities of tacrine, trolox and β-carboline derivatives make them promising lead structures for the development of multifunctional Alzheimer's disease (AD) agents. Based on the topology of the active site of cholinesterases and other target proteins involved in the pathogenesis of AD, we have designed and synthesized tacrine-trolox and tacrine-tryptoline hybrids with various
他克林,trolox和β-咔啉衍生物的多种生物活性使其成为开发多功能阿尔茨海默氏病(AD)药物的有前途的先导结构。基于胆碱酯酶和其他与AD发病机理有关的目标蛋白的活性位点的拓扑结构,我们设计和合成了具有不同接头链长度的他克林-trolox和他克林-隐氨酸杂种。含有trolox部分(8a-8d)的杂种表现出中等至高的TcAChE抑制作用(IC50:17.37-2200 nM),eqBuChE抑制作用(IC50:3.16-128.82 nM)和自由基清除活性(IC50:11.48-49.23 µM)。通常,具有较长连接子链长度的杂种表现出更好的ChE抑制活性。不出所料 自由基清除活性不受接头链长度变化的显着影响。杂色化合物含有通过7个碳间隔基连接至他克林(14)的色氨酸部分,显示出最佳的AChE和BuChE抑制活性(IC50 = 17.37和3.16 nM)。对接实验表明,化合物8d和14能够