An efficient synthesis of enantiomerically pure β- and γ-amino acids starting from commercially available aspartic and glutamic acid derivatives is described. The acid function, α to the amino group, is first transformed to a good leaving group and the product reacted with organocuprates to yield β-and γ-amino esters. After deprotection β- and γ-amino acids are obtained in good overall yields.
描述了一种高效合成手性纯的β-和γ-
氨基酸的方法,该方法从市售的谷
氨酸和
天冬氨酸衍
生物出发。首先将
氨基酸的α位羧基转化为良好的离去基团,然后与
有机铜试剂反应,生成β-和γ-
氨基酸酯。经过脱保护步骤后,以良好的总产率获得β-和γ-
氨基酸。