[EN] PROCESS FOR PREPARING 4-ARYL-PIPERIDINE DERIVATIVES<br/>[FR] PROCEDE DE PREPARATION DE DERIVES DE 4-ARYLPIPERIDINE
申请人:NOVO NORDISK A/S
公开号:WO1996036636A1
公开(公告)日:1996-11-21
(EN) A process for the preparation of a compound of formula (VIII), wherein R1 is C2-5-alkyl, phenyl-C1-5-alkyl, or substituted phenyl-C1-5-alkyl.(FR) L'invention concerne un procédé de préparation d'un composé de formule (VIII), dans laquelle R1 représente alkyle-C2-5, phényle-alkyle-C1-5, ou phényle-alkyle-C1-5 à substitution.
PROCESS FOR PREPARING 4-ARYL-PIPERIDINE DERIVATIVES
申请人:NOVO NORDISK A/S
公开号:EP0828735A1
公开(公告)日:1998-03-18
PROCESS FOR THE PRODUCTION OF PAROXETINE
申请人:RECORDATI S.A.
CHEMICAL and PHARMACEUTICAL COMPANY
公开号:EP1153023B1
公开(公告)日:2003-04-23
US6583287B1
申请人:——
公开号:US6583287B1
公开(公告)日:2003-06-24
[EN] PROCESS FOR THE PRODUCTION OF PAROXETINE<br/>[FR] PROCEDE DE PRODUCTION DE PAROXETINE
申请人:RECORDATI CHEM PHARM
公开号:WO2000050422A1
公开(公告)日:2000-08-31
A process for the production of paroxetin is described, wherein N-substituted derivatives of 4-(p-fluorophenyl)-3-hydroxymethyl-1,2,3,6-tetrahydropyridine are treated according to the following sequence of reactions: (a) hydrogenation catalysed by transition metal complexes with chiral diphosphinic ligands; (b) -OH derivatisation and nucleophilic substitution, the substitutent being sesamol; (c) N-dealkylation. The process is highly stereospecific and brings about the formation of intermediates enriched with the desired isomeric components, which are converted into paroxetine in quantitative yields.