Process for the preparation of esters of amino acids
申请人:Merck & Co., Inc.
公开号:US04654433A1
公开(公告)日:1987-03-31
A simple single step process for preparing alkyl and substituted alkyl esters of amino acids is described. The products are bioactive compounds including compounds useful as antihypertensive agents.
Crystalline salts of L or (S)-3-(3,4-dihydroxyphenyl)-2-methylalanine esters and process
申请人:Merck & Co., Inc.
公开号:EP0139983A1
公开(公告)日:1985-05-08
Crystalline salts of (R,S)-pivaloyloxyethyl esters of (S)-3-(3,4-dihydroxyphenyl)-2-methylalanine, processes fortheir preparation and pharmaceutical composition are dis- dosed.