Essential structure of opioid κ receptor agonist nalfurafine for binding to the κ receptor 3: Synthesis of decahydro(iminoethano)phenanthrene derivatives with an oxygen functionality at the 3-position and their pharmacologies
作者:Hideaki Fujii、Satomi Imaide、Shigeto Hirayama、Toru Nemoto、Hiroaki Gouda、Shuichi Hirono、Hiroshi Nagase
DOI:10.1016/j.bmcl.2012.09.101
日期:2012.12
an opioid κ receptor selective agonist, nalfurafine, for binding to the κ receptor, we designed and synthesized the decahydro(iminoethano)phenanthrene derivatives with an oxygen functionality at the 3-position. The introduction of a hydroxy group to the derivatives increased the affinity and selectivity to the κ receptor regardless of the configuration at the 3-position. However, their affinities were
为了阐明阿片样物质κ受体选择性激动剂那氟拉芬与κ受体结合的基本结构,我们设计并合成了在3位具有氧官能团的十氢(亚氨基乙基)菲衍生物。羟基的引入增加了对κ受体的亲和力和选择性,而与3位上的构型无关。然而,它们的亲和力低于具有酚羟基的那氟萘芬的亲和力。结果表明羟基的酸度将在与阿片样物质受体的相互作用中起重要作用。3-酮衍生物的低亲和力表明3-羟基基团可以不作为氢受体而是作为氢供体参与与受体位点的氢键结合。这是吗啡烷中3-羟基作为氢供体的第一个实验证据。此外,这些具有6α-酰胺侧链的衍生物的κ选择性受3-羟基的影响。预期获得的结构-活性关系信息将有助于设计针对κ受体的更具选择性的配体。