Discovery of 3-Hydroxy-3-phenacyloxindole Analogues of Isatin as Potential Monoamine Oxidase Inhibitors
作者:Rati K. P. Tripathi、Sairam Krishnamurthy、Senthil R. Ayyannan
DOI:10.1002/cmdc.201500443
日期:2016.1
A series of 3‐hydroxy‐3‐phenacyloxindole analogues of isatin were designed, synthesized, and evaluated in vitro for their inhibitory activity toward monoamine oxidase (MAO) A and B. Most of the synthesized compounds proved to be potent and selective inhibitors of MAO‐A rather than MAO‐B. 1‐Benzyl‐3‐hydroxy‐3‐(4′‐hydroxyphenacyl)oxindole (compound 18) showed the highest MAO‐A inhibitory activity (IC50:
设计,合成并评估了一系列的Isatin 3-羟基-3-phenacyloxindole类似物对单胺氧化酶(MAO)A和B的抑制活性。大多数合成的化合物被证明是MAO的有效和选择性抑制剂-A而不是MAO-B。1-苄基-3-羟基-3-(4'-羟基苯甲酰)羟吲哚(化合物18)显示出最高的MAO-A抑制活性(IC 50:0.009±0.001μ米,ķ我:3.69±0.003Ñ米)和良好的选择性(选择性指数:60.44)。动力学研究表明,化合物18和16(1-苄基-3-羟基-3-(4′-溴代苯甲酰基)恶唑)对MAO-A和MAO-B表现出竞争性抑制作用。结构-活性关系研究表明3-羟基是这些类似物表现出有效的MAO-A抑制活性的基本特征。计算研究表明抑制剂和MAO同工酶之间可能存在分子相互作用。获得的计算数据与实验结果一致。铅抑制剂的进一步研究,包括抑制剂-MAO复合物的共结晶和体内评估,对于它们作为治