PROCEDE DE PREPARATION DU 4-(3-PYRIDINYL)-1H-IMIDAZOLE ET LES INTERMEDIAIRES MIS EN OEUVRE
申请人:Aventis Pharma S.A.
公开号:EP1095035B1
公开(公告)日:2010-03-17
PROCESS FOR PREPARING PYRIDINE-SUBSTITUTED AMINO KETAL DERIVATIVES
申请人:Sanofi-Aventis Deutschland GmbH
公开号:EP1601648A2
公开(公告)日:2005-12-07
US6353108B1
申请人:——
公开号:US6353108B1
公开(公告)日:2002-03-05
US6916934B2
申请人:——
公开号:US6916934B2
公开(公告)日:2005-07-12
[EN] PROCESS FOR PREPARING PYRIDINE-SUBSTITUTED AMINO KETAL DERIVATIVES<br/>[FR] PROCEDE PERMETTANT DE PREPARER DES DERIVES D'AMINO-CETAL SUBSTITUES PAR DE LA PYRIDINE
申请人:AVENTIS PHARMA GMBH
公开号:WO2004072026A2
公开(公告)日:2004-08-26
The present invention relates to an efficient process for preparing derivatives of 1-(pyridinyl)-1, 1-dialkoxy-2-aminoethane of the formula (I), with which compounds of the formula (I) can be prepared in high purity and yield and in the form of the free base without isolating the acetylpyridine oxime of the formula (XI) which is a critical product from a safety point of view as a solid.