Probes for narcotic receptor mediated phenomena. 46. N-substituted-2,3,4,9,10,10a-hexahydro-1H-1,4a-(epiminoethano)phenanthren-6- and 8-ols – Carbocyclic relatives of f-oxide-bridged phenylmorphans
作者:Fuying Li、Jason A. Deck、Christina M. Dersch、Richard B. Rothman、Jeffrey R. Deschamps、Arthur E. Jacobson、Kenner C. Rice
DOI:10.1016/j.ejmech.2012.10.041
日期:2012.12
Oxide-bridged phenylmorphans were conceptualized as topologically distinct, structurally rigid ligands with 3-dimensional shapes that could not be appreciably modified on interaction with opioid receptors. An enantiomer of the N-phenethyl-substituted ortho-f isomer was found to have high affinity for the μ-receptor (Ki = 7 nM) and was about four times more potent than naloxone as an antagonist. In
氧化物桥接苯基吗啡烷被概念化为拓扑不同、结构刚性的配体,具有 3 维形状,在与阿片受体的相互作用时无法明显改变。发现N-苯乙基取代的邻-f 异构体的对映异构体对 μ-受体具有高亲和力 ( K i = 7 nM),并且作为拮抗剂的效力是纳洛酮的四倍。为了检查在这些分子中引入少量柔性的影响,我们用更灵活的 6 元碳环代替了刚性 5 元氧化物环。新的合成ñ -苯乙基-取代的三环ñ -取代-2,3,4,9,10,10a -六氢-1- ħ-1,4a-(表亚氨基乙醇)菲-6-和8-醇产生两个碳桥连的f-异构体,二氢呋喃环被环己烯环取代。与 f-氧化物桥接的苯基吗喃类相比,碳环化合物对 μ-受体具有更高的亲和力和更高的选择性。它们还是更有效的 μ-拮抗剂,在 [ 35 S] GTP-γ-S 测定中具有与纳曲酮相当的活性。