作者:A. F. Casy、L. G. Chatten、K. K. Khullar
DOI:10.1039/j39690002491
日期:——
Diastereoisomeric 3-methyl analogues of pethidine and related 4-propionyl derivatives have been synthesized by the condensation of phenylacetonitrile with derivatives of N-2-hydroxyethyl-2-hydroxypropylamine. Isomeric forms of intermediate 4-cyanopiperidines have been isolated and their configurations have been established from 1H n.m.r. data and by chemical correlations. Amides and amidines are by-products
哌啶和相关的4-丙酰基衍生物的非对映异构体3-甲基类似物是通过苯乙腈与N -2-羟乙基-2-羟丙胺的衍生物缩合而合成的。中间体4-氰基哌啶的异构体形式已经被分离,并且它们的构型已经从1 H nmr数据和化学相关性确定。酰胺和am是这些反应的副产物。在小鼠热板试验中,3-甲基哌啶的β-非对映异构体(顺式3-Me / 4-Ph)为11倍,α-异构体为1·3倍,比哌替啶更有效。