作者:Montserrat Alcón、Marta Poch、Albert Moyano、Miquel A. Pericàs
DOI:10.1016/s0957-4166(97)00346-7
日期:1997.9
An asymmetric synthesis of fully protected (S)-Vigabatrin® has been developed. The key intermediate in the sequence is enantiomerically pure N-Boc-5-phenyl-3-amino-1,2-diol 5a, obtained from (E)-5-phenyl-2-penten-1-ol by employing a catalytic Sharpless epoxidation as the sole source of chirality. Aminodiol 5a was converted into the target N-Boc-(S)-Vigabatrin methyl ester 3 by a five-step sequence
已开发出一种完全受保护的(S)-Vigabatrin®的不对称合成物。该序列中的关键中间体是对映体纯的N -Boc-5-苯基-3-氨基-1,2-二醇5a,它是通过(Sharplessless)催化从(E)-5-苯基-2-戊烯-1-醇制得的环氧化是手性的唯一来源。通过五步序列将氨基二醇5a转化为目标N -Boc-(S)-维加巴特林甲酯3,该过程涉及潜在羧基的实现(苯基氧化)和1,2-的Corey-Hopkins脱氧协议二醇。