[EN] AN IMPROVED PROCESS FOR PREPARATION OF PERINDOPRIL INTERMEDIATE<br/>[FR] PROCÉDÉ AMÉLIORÉ DE PRÉPARATION D'UN INTERMÉDIAIRE DE PÉRINDOPRIL
申请人:PIRAMAL ENTPR LTD
公开号:WO2014057404A1
公开(公告)日:2014-04-17
The present invention relates to an improved process for the preparation of (2S,3aS,7aS)-1-[(2S)-2-[[(1S)-1-(ethoxycarbonyl)butyl]amino]-1-oxopropyl]octahydro-lH-indole-2-carboxylic acid benzyl ester( the compound of formula II) comprising reacting (2S,3aS,7aS)-octahydro-1H-indole-2-carboxylic acid phenylmethyl ester 4-methylbenzenesulfonate (the compound of formula III) with N-[(S)-ethoxycarbonyl-1-butyl]-(S)-alanine (the compound of formula IV), using 1-hydroxybenzotriazole (HOBT), dicyclohexylcarbodiimide (DCC) and triethylamine in the presence of toluene as a solvent at a temperature of 5°C to 40°C.
Process for manufacture of pure (2S, 3aS, 7aS)-1-[(2S)-2-[[(1S)-1-(ethoxycarbonyl) butyl] amino]-1-oxopropyl] octahydro-1H-indole-2-carboxylic acid and its tert. butyl amine salt
申请人:Gunjal Tukaram Sanjay
公开号:US20070021490A1
公开(公告)日:2007-01-25
New compounds useful as synthetic intermediates to synthesize perindopril, a new process for synthesizing perindopril, and new salts of perindopril.
AN IMPROVED PROCESS FOR PREPARATION OF PERINDOPRIL INTERMEDIATE
申请人:Piramal Enterprises Limited
公开号:EP2906536A1
公开(公告)日:2015-08-19
PROCESS FOR PREPARATION OF PERINDOPRIL INTERMEDIATE
申请人:PIRAMAL ENTERPRISES LIMITED
公开号:US20150252001A1
公开(公告)日:2015-09-10
The present invention relates to an improved process for the preparation Of (2S,3aS,7aS)-1-[(2S)-2-[[(1S)-1-(ethoxycarbonyl)butyl]amino]3-S-oxopropyl]octahydro-1H-indole-2-carboxylic acid benzyl ester (the compound of formula II) comprising reacting (2S,3aS,7aS)-octahydro-1H-indole-2-carboxylic acid phenylmethyl ester
4
-methylbenzenesulfonate (the compound of formula III) with N-[(S)-ethoxycarbonyl-1-butyl]-(S)-alanine (the compound of formula IV), using 1-hydroxybenzotriazole (HOBT), dicyclohexylcarbodimide (DCC) and triethylamine in the presence of toluene as a solvent at a temperature of 5-40° C.