[EN] PROCESS FOR PRODUCING 2-[1-METHYL-5-(4-METHYLBENZOYL)- PYRROL-2- YL]ACETIC ACID OR SALT THEREOF<br/>[FR] PROCÉDÉ DE FABRICATION DE L'ACIDE 2-[1-MÉTHYL-5-(4-MÉTHYLBENZOYL)PYRROL-2-YL]ACÉTIQUE OU D'UN SEL DE CELUI-CI
申请人:MATRIX LAB LTD
公开号:WO2009072139A1
公开(公告)日:2009-06-11
The present invention relates to novel process for the preparation of tolmetin sodium, by employing easily available starting material and suitable reaction conditions. This invention is further related to novel crystalline forms of tolmetin methyl ester, tolmetin and tolmetin sodium and their process for the preparation.
5-Chlorocarbonyl
申请人:McNeil Laboratories, Inc.
公开号:US03950355A1
公开(公告)日:1976-04-13
A process of preparing certain 5-aroyl-pyrrole-2-alkanoic acid derivatives using phosgene and certain 5-unsubstituted pyrroles as starting materials, and certain novel 5-chlorocarbonyl-pyrrole precursors.