Studies on the total synthesis of paraherquamide A. Stereocontrolled, asymmetric synthesis of α-alkyl-β-hydroxyproline derivatives
作者:Robert M. Williams、Jianhua Cao
DOI:10.1016/0040-4039(96)01189-6
日期:1996.7
The dianion formed from 3(S),2(R)-3-hydroxyproline ethyl ester (5) with LDA, can be alkylated with a variety of alkyl halides with net retention of configuration to give the corresponding α-alkylated-β-hydroxyproline esters (6) in good yield.
由3(S),2(R)-3-羟基脯氨酸乙酯(5)与LDA形成的二价阴离子可以用各种烷基卤化物进行烷基化,并净保留构型,从而得到相应的α-烷基化-β-羟基脯氨酸酯(6),收率高。