Synthesis, pharmacological characterization and QSAR studies on 2-substituted indole melatonin receptor ligands
作者:Marco Mor、Gilberto Spadoni、Barbara Di Giacomo、Giuseppe Diamantini、Annalida Bedini、Giorgio Tarzia、Pier Vincenzo Plazzi、Silvia Rivara、Romolo Nonno、Valeria Lucini、Marilou Pannacci、Franco Fraschini、Bojidar Michaylov Stankov
DOI:10.1016/s0968-0896(00)00322-9
日期:2001.4
minoethyl)indoles, carrying properly selected substituents at the C-2 indole position, were prepared and tested as melatonin receptor ligands. Affinities and intrinsic activities for the human cloned mt1 and MT2 receptors were examined and compared with those of some 2-substituted melatonin derivatives recently described by us. A quantitative structure activity relationship (QSAR) study of the sixteen
许多6-甲氧基-1-(2- propionylaminoethyl)吲哚,在C-2位置吲哚携带适当地选择的取代基,制备和褪黑激素受体的配体进行试验。检查了人类克隆的mt1和MT2受体的亲和力和内在活性,并将其与我们最近描述的一些2-取代的褪黑激素衍生物的亲和力和内在活性进行了比较。使用偏最小二乘(PLS)和多元回归分析(MRA)对16种2-取代的吲哚化合物5a-k,1,8-11进行的定量结构活性关系(QSAR)研究表明,存在最佳范围的C 2吲哚取代基的亲脂性。也有迹象表明,平面的吸电子取代基通过与结合口袋建立额外的相互作用而促进了亲和力。没有观察到mt1 / MT2亚型选择性,只有2-苯乙基衍生物5e例外,后者在所有测试化合物中对h-MT2受体表现出最高选择性(MT2 / mt1比率约为50)。构象分析和5e与其他报道的选择性MT2配体的叠加表明,结构和构象相似性可能解释了5e的MT2 /