[EN] PROCESS FOR THE ENANTIOSELECTIVE PREPARATION OF PREGABALIN<br/>[FR] PROCÉDÉ POUR LA PRÉPARATION ÉNANTIOSÉLECTIVE DE LA PRÉGABALINE
申请人:ESTEVE LABOR DR
公开号:WO2009010554A1
公开(公告)日:2009-01-22
The invention provides a new enantioselective process for the preparation of (S) -pregabalin, or a pharmaceutical acceptable addition acid salt comprising: acid hydrolysis of the dioxolan ring of a chiral compound of general formula (I) to obtain compound of general formula (II); oxidation of compound (II) to obtain a compound of general formula (III) and transforming compound (III) into compound of general formula (IV); subjecting compound (IV) to basic hydrolysis to obtain a compound of general formula (V) which is reduced to obtain enantiomerically pure S-pregabalin. The invention also provides new chiral intermediates involved in the process.
Process for the enantioselective preparation of pregabalin
申请人:Laboratorios del Dr. Esteve S.A.
公开号:EP2017273A1
公开(公告)日:2009-01-21
The invention provides a new enantioselective process for the preparation of (S)-pregabalin, or a pharmaceutical acceptable addition acid salt comprising: acid hydrolysis of the dioxolan ring of a chiral compound of general formula (I) to obtain compound of general formula (II); oxidation of compound (II) to obtain a compound of general formula (III) and transforming compound (III) into compound of general formula (IV); subjecting compound (IV) to basic hydrolysis to obtain a compound of general formula (V) which is reduced to obtain enantiomerically pure S-pregabalin. The invention also provides new chiral intermediates involved in the process.
PROCESS FOR THE ENANTIOSELECTIVE PREPARATION OF PREGABALIN
申请人:Ortuno Rosa M.
公开号:US20100197939A1
公开(公告)日:2010-08-05
The invention provides a new enantioselective process for the preparation of (S)-pregabalin, or a pharmaceutical acceptable addition acid salt comprising: acid hydrolysis of the dioxolan ring of a chiral compound of general formula (I) to obtain compound of general formula (II); oxidation of compound (II) to obtain a compound of general formula (III) and transforming compound (III) into compound of general formula (IV); subjecting compound (IV) to basic hydrolysis to obtain a compound of general formula (V) which is reduced to obtain enantiomerically pure S-pregabalin. The invention also provides new chiral intermediates involved in the process.