New approaches to the asymmetric synthesis of non-proteinogenic α-amino acids and dipeptides through chiral β-lactam intermediates
作者:Iwao Ojima、Hauh-Jyun C. Chen、Xiaogang Qiu
DOI:10.1016/s0040-4020(01)86038-5
日期:1988.1
Novel and effective routes to optically pure aromatic α-amino acids, α-methyl-α-amino acids and their derivatives including dipeptides are developed via homochiral β-lactams which are obtained through asymmetric [2+2] cycloadditions of ketenes to imines.