Synthesis and Structure−Activity Relationships of <i>N</i>-(1-Benzylpiperidin-4-yl)arylacetamide Analogues as Potent σ<sub>1</sub> Receptor Ligands
作者:Yunsheng Huang、Philip S. Hammond、Li Wu、Robert H. Mach
DOI:10.1021/jm010384j
日期:2001.12.1
of the phenyl ring of the phenylacetamide moiety with a thiophene, naphthyl, or indole aromatic ring had no significant effect on the sigma1 receptor affinity. Replacement of the phenyl ring with an imidazole or pyridyl aromatic ring resulted in a >60-fold loss in affinity for sigma1 receptors and no significant binding affinity for sigma2 receptors. Substitution on the aromatic ring of the benzyl
合成了一系列N-(1-苄基哌啶-4-基)芳基乙酰胺,并评估了它们与sigma1和sigma2受体的结合特性。与先前报道的N-(1-苄基哌啶-4-基)苯基乙酰胺的sigma1 / sigma2受体结合数据一致,下面报告的所有N-(1-苄基哌啶-4-基)芳基乙酰胺化合物均显示出对sigma1的亲和力高于sigma2受体。用噻吩,萘基或吲哚芳环取代苯乙酰胺部分的苯环对sigma1受体的亲和力没有明显影响。用咪唑或吡啶基芳环取代苯环会导致对sigma1受体的亲和力损失> 60倍,并且对sigma2受体的结合亲和力不明显。苄基芳香环上的取代显示出对sigma1受体的亲和力相似或略有降低。苯乙酰胺部分和苄基上的芳香环都被卤素取代,导致对sigma(1)受体的亲和力相似,并且对sigma2受体的亲和力大大提高。比较分子场分析表明,苯乙酰胺芳环中取代基的静电性质强烈影响与sigma1受体的结合。化合物1、