Process for preparation of alpha-alkyl amino acids
申请人:Merck & Co., Inc.
公开号:EP0169300B1
公开(公告)日:1988-05-25
US4508921A
申请人:——
公开号:US4508921A
公开(公告)日:1985-04-02
Enantioretentive alkylation of acyclic amino acids
作者:Sandor Karady、Joseph S. Amto、Leonard M. Weinstock
DOI:10.1016/s0040-4039(01)81432-5
日期:1984.1
A stereospecific method is described for the alkylation of acyclic amino acids (alanine and phenylalanine) which proceeds with retention of configuration. The method involves a) conversion of the amino acid to the predominantly 2-aryl-3-carbobenzyloxy oxazolidinones (2 and 8), b) alkylation of the potassium enolate with CH3I or PhCH2Br, c) Base hydrolysis and hydrogenolysis to afford the alkylated