Asymmetric Synthesis and Enantiospecificity of Binding of 2-(1,2,3,4-Tetrahydro-1-isoquinolyl)-ethanol Derivatives to μ and κ Receptors
作者:Klaus Th. Wanner、Ilona Praschak、Georg Höfner、Herbert Beer
DOI:10.1002/ardp.19963290104
日期:——
reactions, served as starting compounds. Upon reduction of 5a—c and ent‐5a—c the amido alcohols l‐6a—c, u‐6a—c, ent‐l‐6a—c and ent‐u‐6a—c were obtained. Hydrolysis of these compounds yielded the secondary amino alcohols l‐7a—c, u‐7a—c, ent‐l‐7a—c and ent‐u‐7a—c and upon reductive methylation of l‐7b—c, u‐7b—c, ent‐l‐7b—c and ent‐u‐7b—c with CH2O and NaCNBH3 the tertiary amino alcohols l‐7d—e, u‐7d—e, ent‐l‐7d—e
许多 2-(1,2,3,4-四氢-1-异喹啉基)-乙醇衍生物 7a-e 已经以非对映体和对映体纯形式合成,并评估了它们对 μ 和 κ 阿片受体的结合亲和力。酰胺酮 5a-c 和 ent-5a-c 可通过将 3b 和 ent-3b 用于不对称亲电酰胺烷基化反应而获得,用作起始化合物。5a-c和ent-5a-c还原得到酰胺醇l-6a-c、u-6a-c、ent-l-6a-c和ent-u-6a-c。这些化合物的水解产生仲氨基醇 l-7a-c、u-7a-c、ent-l-7a-c 和 ent-u-7a-c,并且在 l-7b-c、u-7b 的还原甲基化后—C、ent-l-7b —c 和 ent-u-7b —c 与 CH2O 和 NaCNBH3 叔氨基醇 l-7d-e、u-7d-e、ent-l-7d-e 和 ent-u-得到7d-e。