Probes for Narcotic Receptor Mediated Phenomena. 41. Unusual Inverse μ-Agonists and Potent μ-Opioid Antagonists by Modification of the N-Substituent in Enantiomeric 5-(3-Hydroxyphenyl)morphans
作者:Kejun Cheng、Yong Sok Lee、Richard B. Rothman、Christina M. Dersch、Ross W. Bittman、Arthur E. Jacobson、Kenner C. Rice
DOI:10.1021/jm1011676
日期:2011.2.24
express the cloned human μ-opioid receptor. Two of the N-substituted compounds with a cyclopropane ring were very potent μ-opioid antagonists ((+)-29, Ke = 0.17 and (−)-30, Ke =0.3) in the [35S]GTP-γ-S functional binding assay. By comparison of the geometry-optimized structures of the newly synthesized compounds, an attempt was made to rationalize their μ-opioid receptor affinity in terms of the spatial
通过添加环丙烷环或双键赋予对映体 5-(3-羟基苯基)morphans N-取代基的构象限制。合成了 N-取代化合物的所有可能的对映异构体和异构体。阿片受体结合测定表明,其中一些具有比具有N-苯丙基取代基的化合物高约 20 倍的 μ-亲和力(对于具有各种 N-取代基的检查化合物,K i = 2-450 nM)。大多数化合物在 [ 35S]GTP-γ-S 功能结合测定,使用稳定表达克隆的人类 μ-阿片受体的非依赖性细胞。具有环丙烷环的两种 N 取代化合物是 [ 35 S]GTP-γ中非常有效的 μ-阿片拮抗剂((+)-29 , K e = 0.17 和(-)-30 , K e =0.3)-S 功能结合测定。通过比较新合成化合物的几何优化结构,尝试根据 N 取代基的空间位置合理化它们的 μ-阿片受体亲和力。