Probes for Narcotic Receptor Mediated Phenomena. 23. Synthesis, Opioid Receptor Binding, and Bioassay of the Highly Selective δ Agonist (+)-4-[(α<i>R</i>)-α-((2<i>S</i>,5<i>R</i>)-4-Allyl-2,5-dimethyl-1-piperazinyl)-3-methoxybenzyl]- <i>N</i>,<i>N</i>-diethylbenzamide (SNC 80) and Related Novel Nonpeptide δ Opioid Receptor Ligands
作者:Silvia N. Calderon、Kenner C. Rice、Richard B. Rothman、Frank Porreca、Judith L. Flippen-Anderson、Hiroshi Kayakiri,、Heng Xu、Karen Becketts、Larren E. Smith、Edward J. Bilsky、Peg Davis、Robert Horvath
DOI:10.1021/jm960319n
日期:1997.2.1
(-)-22, and (-)-23 showed micromolar affinities for delta opioid receptors. The unsubstituted derivative (+)-22 and the fluorinated derivative (-)-27 showed > 2659- and > 2105-fold delta/mu binding selectivity, respectively. The latter derivatives are the most selective ligands described in the new series. Studies with some of the compounds described in the isolated mouse vas deferens and guinea pig
高选择性δ(δ)阿片受体激动剂SNC 80 [(+)-4-[[αR)-α-((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,(+)-21]和新颖的光学纯衍生物是由1-烯丙基-反式-2,5-二甲基哌嗪的对映体合成的(2)。合成了哌嗪(+/-)-2,并且通过外消旋物与樟脑酸的旋光拆分,以大于99%的光学纯度以克数获得了其对映异构体。通过用(+)-樟脑酸对盐进行X射线分析,确定(+)-2的绝对构型为2S,5R。由于已知原料的手性,并且通过单晶X射线分析获得了化合物(-)-21,(-)-22和(+)-23的相对构型,可以确定整个系列的绝对立体化学。大鼠脑制剂中的放射性受体结合研究表明,甲基醚(+)-21(SNC 80)和(-)-25对大鼠δ受体具有很强的选择性,对δ受体的纳摩尔亲和力低,而对鼠mu(mu)仅微摩尔的亲和力阿片受体。化合物(-)