Mapping the Peripheral Benzodiazepine Receptor Binding Site by Conformationally Restrained Derivatives of 1-(2-Chlorophenyl)-<i>N</i>-methyl-<i>N</i>-(1-methylpropyl)-3-isoquinolinecarboxamide (PK11195)
作者:Andrea Cappelli、Maurizio Anzini、Salvatore Vomero、Pier G. De Benedetti、Maria Cristina Menziani、Gianluca Giorgi、Cristina Manzoni
DOI:10.1021/jm960516m
日期:1997.8.1
in binding studies using [3H]-1, and most of these showed PBR affinities in the nanomolar range. The essential role of the carbonyl moiety as a primary pharmacophoric element in the recognition by and the binding to PBR has been confirmed, and the restricted range of the carbonyl orientations, which characterizes the most potent ligands, points to a specific hydrogen-bonding interaction, mainly directed
研究与1-(2-氯苯基)-N-甲基-N-(1-甲基丙基)-3-异喹啉羧酰胺(PK11195,1)相关的外围苯并二氮杂receptor受体(PBR)配体结合位点的合成计算方法)在其受体内已被开发出来。为了系统地探测PBR结合位点,已经设计了一系列的1构象受约束的衍生物。这些化合物的合成涉及钯催化的偶联和酰胺化作为关键步骤。使用[3H] -1在结合研究中测试了29个1的刚性和半刚性衍生物,其中大多数显示PBR亲和力在纳摩尔范围内。已经确认了羰基部分作为主要药效学元素在通过PBR识别并与PBR结合中的重要作用,并且羰基取向的范围受到限制,表征最有效的配体的特征是当电子键合时,特定的氢键相互作用(主要由几何因素决定)。此外,从报道的QSAR模型中发现,短程分散相互作用在调节结合亲和力以及因此在稳定配体-受体复合物中的根本重要性。