A Marked Change of Receptor Affinity of the 2-Methyl-5-(3-hydroxyphenyl)morphans upon Attachment of an (E)-8-Benzylidene Moiety: Synthesis and Evaluation of a New Class of .sigma. Receptor Ligands
作者:Craig M. Bertha、Mariena V. Mattson、Judith L. Flippen-Anderson、Richard B. Rothman、Heng Xu、Xian-Yuan Cha、Karen Becketts、Kenner C. Rice
DOI:10.1021/jm00045a022
日期:1994.9
derivatives 2 or 4 via the Claisen-Schmidt reaction. The corresponding enantiomers of 5 and 6 were obtained in > 99% optical purity from the optical isomers of 4, resolved with the O,O'-dibenzoyltartaric acids. The absolute configurations of the enantiomers of 4 were determined by conversion, via Clemmensen reduction, to the enantiomers of 1, the configurations of which are known. The determination of the
合成鸦片剂2-甲基-5-(3-羟基苯基)吗啉的(E)-8-亚苄基和(E)-8-(3,4-二氯亚苄基),7-酮衍生物5和6 [5通过Claisen-Schmidt反应由7-酮衍生物2或4合成-(3-羟基苯基)-2-甲基-2-氮杂双环[3.3.1]壬烷,1]。从O,O′-二苯甲酰基酒石酸拆分得到的4的旋光异构体,以> 99%的光学纯度获得相应的5和6的对映异构体。4的对映异构体的绝对构型是通过Clemmensen还原反应转化为1的对映异构体而确定的,其构型是已知的。由单晶X射线分析确定相对于引入的亚苄基的5的区域异构体和构型异构体。1 H NMR数据用于确认6具有与5相同的构型。在大鼠和豚鼠脑准备物中的放射性受体结合研究显示,(-)-(1S,5S)-5对阿片样物质的亲和力降低11倍相对于酮前体(+)-(1S,5S)-4,μ受体和对sigma受体的亲和力增加了81倍(低纳摩尔亲和力)。化合物(-