Synthesis of α-Substituted β-Amino Acids Using Pseudoephedrine as a Chiral Auxiliary
作者:Gangadhar Nagula、Vincent J. Huber、Christopher Lum、Burton A. Goodman
DOI:10.1021/ol006614q
日期:2000.11.1
intermediates in the synthesis of a variety of molecular structures. However, few methods are available for the synthesis of alpha-substituted beta-amino acids that are both readily scalable and highly stereoselective. Herein we report a new method for synthesizing alpha-substituted beta-amino acids that satisfies both of these requirements using enantiomerically pure pseudoephedrine as a chiral auxiliary
[反应:见正文]β-氨基酸作为合成各种分子结构的中间体正变得越来越有吸引力。但是,很少有方法可用于合成易于扩展和高度立体选择性的α-取代的β-氨基酸。在这里,我们报告了一种新的合成α-取代的β-氨基酸的方法,该方法使用对映体纯的伪麻黄碱作为手性助剂满足了这两个要求。