Synthesis, structure–affinity relationships, and modeling of AMDA analogs at 5-HT2A and H1 receptors: Structural factors contributing to selectivity
作者:Jitesh R. Shah、Philip D. Mosier、Bryan L. Roth、Glen E. Kellogg、Richard B. Westkaemper
DOI:10.1016/j.bmc.2009.08.016
日期:2009.9
constraint of the aromatic rings on the binding affinities of the compounds with the 5-HT2A and H1receptors. Homology modeling of the 5-HT2A and H1receptors suggests that AMDA and its analogs, the parent of which is a 5-HT2A antagonist, can bind in a fashion analogous to that of classical H1antagonists whose ring systems are oriented toward the fifth and sixth transmembrane helices. The modeled orientation
中枢神经系统中存在的组胺 H 1和血清素 5-HT 2A受体与多种神经精神疾病有关。9-氨甲基-9,10-二氢蒽 (AMDA) 是一种构象受限的二芳基烷基胺衍生物,对这两种受体都具有亲和力。进行了结构亲和关系 (SAFIR) 研究,研究 N-甲基化、改变连接链长度和芳香环约束对化合物与 5-HT 2A 和 H 1 受体的结合亲和力的影响。5-HT 2A和 H 1受体的同源建模表明,AMDA 及其类似物(其母体是 5-HT 2A拮抗剂)可以以类似于经典 H 1拮抗剂的方式结合,其环系统面向第五和第六跨膜螺旋。配体的建模方向与报道的 5-HT 2A和 H 1受体定点诱变数据一致,并为作用于两种受体的配体的选择性提供了潜在的解释。