Highly selective .kappa.-opioid analgesics. 2. Synthesis and structure activity relationships of novel N-(2-aminocyclohexyl)arylacetamide derivatives
作者:Paul R. Halfpenny、Raymond G. Hill、David C. Horwell、John Hughes、John C. Hunter、Stephen Johnson、David C. Rees
DOI:10.1021/jm00127a036
日期:1989.7
chemical synthesis and the development of structure-activity relationships (SAR) for the kappa opioid receptor affinity and mu/kappa opioid receptor selectivity of novel N-[(2-aminocyclohexyl)aryl]acetamide derivatives. The SAR of this series are investigated by consideration of structural modifications made to the aromatic moiety, the amide linkage, and cyclohexane and the pyrrolidine ring substituents
本文描述了新型N-[(2-氨基环己基)芳基]乙酰胺衍生物的κ阿片受体亲和力和mu / k阿片受体选择性的化学合成和结构-活性关系(SAR)的发展。通过考虑对原型kappa选择性激动剂PD117302(反式-N-甲基-N- [2-( 1-吡咯烷基)环己基]苯并[b]噻吩-4-乙酰胺)(1)。报道了23种新化合物的Kappa和mu阿片受体结合亲和力。观察到,通过C-4位连接的苯并[b]噻吩芳族系统获得了最佳的mu / kappa受体选择性,根据空间和电子参数进行讨论。酰胺键已被反向酰胺,酯,氨基亚甲基,硫代酰胺和仲酰胺取代。这些等排物中最好的是N-甲基酰胺。与未取代的化合物,例如化合物14,反式-(+/-)-N-甲基-N- [2- []相比,PD117302的吡咯烷环在3-位被羟基亚甲基取代提高了mu /κ选择性。 3-(羟甲基)-1-吡咯烷基]环己基] -4-苯并[b]呋喃乙酰胺单盐酸盐,mu