Method for producing an optically active phenylpropionic acid derivative
申请人:Ajinomoto Co., Inc.
公开号:EP0937710A1
公开(公告)日:1999-08-25
Optically active N-[(S)-2-(acetylthiomethyl)-1-oxo-3-phenylpropyl]-glycine esters derivatives of formula (IV)(wherein R1 represents hydrogen, an optionally substituted amino acid side chain or a protected amino acid chain; R2 represents and optionally substituted linear of branched C1 to C18 alkyl group, or an optionally substituted benzyl group; and * denotes an optionally active carbon atom) useful as enkephalin inhibitory agents of ACE inhibitory agents can be produced at low cost in an industrial manner, by subjecting optically active 2-hydroxymethyl-3-phenylpropionic acid and glycine esters to condensation, subsequently converting the hydroxyl group into an elimination group, and substituting the elimination group with an acetylthio group.
[EN] PROCESS FOR THE PREPARATION OF ALVIMOPAN OR ITS PHARMACEUTICALLY ACCEPTABLE SALT OR SOLVATE THEREOF<br/>[FR] PROCÉDÉ DE PRÉPARATION D'ALVIMOPAN OU DE SON SEL OU SOLVATE PHARMACEUTIQUEMENT ACCEPTABLE
申请人:RANBAXY LAB LTD
公开号:WO2011161646A2
公开(公告)日:2011-12-29
The present invention relates to novel intermediates, ethyl N-[(2S)-2 -benzyl-3- hydroxypropanoyl]glycinate and ethyl N-[(2S)-2-benzyl-3-[(4-bromophenyl)sulfonyl] oxy}propanoyl]glycinate, and processes for their preparation. The present invention also relates to a process for producing alvimopan or its pharmaceutically acceptable salt or solvate thereof using these novel intermediates.(A).