Probes for Narcotic Receptor Mediated Phenomena. 26. Synthesis and Biological Evaluation of Diarylmethylpiperazines and Diarylmethylpiperidines as Novel, Nonpeptidic δ Opioid Receptor Ligands
作者:Xiaoyan Zhang、Kenner C. Rice、Silvia N. Calderon、Hiroshi Kayakiri、Larren Smith、Andrew Coop、Arthur E. Jacobson、Richard B. Rothman、Peg Davis、Christina M. Dersch、Frank Porreca
DOI:10.1021/jm9903895
日期:1999.12.1
bound to the delta receptor with K(i) values in the low nanomolar range. On the other hand, the binding affinities of these compounds for the mu and kappa receptors were negligible, indicating excellent delta opioid receptor subtype selectivity. The two nitrogen atoms on the piperazine nucleus showed different SAR in the interaction of this series of compounds at the delta receptor. Nitrogen N(4) appears
我们最近报道了(+)-4-?(alphaR)-alpha-?(2S,5R)-4-烯丙基-2,5-二甲基-1-哌嗪基??-3-甲氧基苄基-N,N-二乙基苯甲酰胺(1b, SNC80)作为一种新型的非肽δ受体激动剂,并探索了一系列相关衍生物的构效关系(SAR)。我们发现当1b中的3-甲氧基被其他取代基取代或取代时,δ结合活性和选择性几乎没有变化,而N,N-二乙基苯甲酰胺基对于与δ受体的相互作用很重要。哌嗪核的广泛修饰导致合成了一系列新的N,N-二乙基(α-哌嗪基苄基)苯甲酰胺(2,3a-e),N,N-二乙基(α-哌啶基或哌啶亚基苄基)苯甲酰胺(4a, 5a-c,6a-b)和相关派生词(4b,7a-c)。几种化合物(2,3a,3e,6a)以低纳摩尔范围内的K(i)值牢固结合至δ受体。另一方面,这些化合物对mu和κ受体的结合亲和力可忽略不计,表明优异的δ阿片样物质受体亚型选择性。在该系列化合物在δ