A dimethylzinc/diphenylphosphinoylimine approach to the asymmetric synthesis of the calcimimetic agent NPS R-568
作者:Sucharita Banerjee、Brad Smith、Shawn R. Hitchcock
DOI:10.1002/aoc.1723
日期:2011.2
An asymmetric synthesis of the calcimimetic agent NPS R‐568 using a (1R,2S)‐N‐benzylephedrine‐promoted addition of dimethylzinc to a diphenylphosphinoylimine derived from 3‐methoxybenzaldehyde is described. The enantiomeric ratio of the key amine fragment was determined to be 93:7 (86% ee), favoring the (R)‐enantiomer by derivatization and chiral stationary phase HPLC analysis. Copyright © 2010 John
描述了使用(1 R,2 S)-N-苄基麻黄碱促进的二甲基锌与衍生自3-甲氧基苯甲醛的二苯基膦基嘧啶的不对称合成拟钙剂NPS R-568 。通过衍生化和手性固定相HPLC分析确定关键胺片段的对映体比率为93:7(86%ee),有利于(R)-对映体。版权所有©2010 John Wiley&Sons,Ltd.