[EN] PROCESS FOR THE PREPARATION OF N-AMINO SUBSTITUTED HETEROCYCLIC COMPOUNDS [FR] PROCEDE DE PREPARATION DE COMPOSES HETEROCYCLIQUES A SUBSTITUTION N-AMINO
Process for the preparation of N-amino substituted heterocyclic compounds
申请人:Weiberth Franz
公开号:US20050101654A1
公开(公告)日:2005-05-12
An improved process for the preparation of N-amino nitrogen heterocyclic compounds is disclosed and claimed. In an embodiment of this invention, a compound of the formula (VI) is prepared starting from the corresponding indole derivative by way of N-amination and subsequently forming an hydrazone by the reaction with a keto compound in a single step. Further reduction of the hydrazone and subsequent coupling with a pyridine compound affords the compound of formula VI or a suitable salt thereof.
PROCESS FOR THE PREPARATION OF N-AMINO SUBSTITUTED HETEROCYCLIC COMPOUNDS
申请人:Aventis Pharmaceuticals Inc.
公开号:EP1678135B1
公开(公告)日:2009-05-13
US7112682B2
申请人:——
公开号:US7112682B2
公开(公告)日:2006-09-26
[EN] PROCESS FOR THE PREPARATION OF N-AMINO SUBSTITUTED HETEROCYCLIC COMPOUNDS<br/>[FR] PROCEDE DE PREPARATION DE COMPOSES HETEROCYCLIQUES A SUBSTITUTION N-AMINO
申请人:AVENTIS PHARMA INC
公开号:WO2005035496A1
公开(公告)日:2005-04-21
An improved process for the preparation of N-amino nitrogen heterocyclic compounds is disclosed and claimed. In an ambodiment of this invention, a compound of the formula (VI) is prepared starting from the corresponding indole derivative by way of N-amination and subsequently forming an hydrazone by the reaction with a keto compound in a single step. Further reduction of the hydrazone and subsequent coupling with a pyridine compound affords the compound of formula VI or a suitable salt thereof.