Organozinc reagents are among the most commonly used organometallicreagents in modern synthetic chemistry, and multifunctionalized organozinc reagents can be synthesized from structurally simple, readily available ones by means of alkyne carbozincation. However, this method suffers from poor tolerance for terminal alkynes, and transformation of the newly introduced organic groups is difficult, which
[EN] PROCESS FOR PREPARATION OF DRONEDARONE BY N-BUTYLATION<br/>[FR] PROCÉDÉ POUR LA PRÉPARATION DE DRONÉDARONE PAR N-BUTYLATION
申请人:SANOFI SA
公开号:WO2012131409A1
公开(公告)日:2012-10-04
The invention relates to a novel process for preparation of dronedarone (I) and pharmaceutically acceptable salts thereof where the compound of formula (II) or salt thereof is reacted with a compound of formula L-(CH2)3-CH3 (III), where L is a leaving group, and isolating the obtained product and, if desired, converting it into a pharmaceutically acceptable salt thereof. The invention also relates to some novel intermediary compounds and the preparation thereof.
[EN] REDUCTIVE AMINATION PROCESS FOR PREPARATION OF DRONEDARONE USING CARBOXYL INTERMEDIARY COMPOUND<br/>[FR] PROCÉDÉ D'AMINATION RÉDUCTRICE POUR LA PRÉPARATION DE DRONÉDARONE, UTILISANT UN COMPOSÉ INTERMÉDIAIRE CARBOXYLE
申请人:SANOFI SA
公开号:WO2013014478A1
公开(公告)日:2013-01-31
The invention relates to a novel process for preparation of dronedarone of formula (I) and pharmaceutically acceptable salts thereof : Formula (I) characterized in that a compound of formula (II) : Formula (II) is aminated with compound of formula (III) among reductive conditions, : Formula (III) and the obtained product is isolated and, if desired, converted into a pharmaceutically acceptable salt thereof. The invention also relates to some novel intermediary compounds and the preparation thereof.
PROCESS FOR PREPARATION OF DRONEDARONE BY N-BUTYLATION
申请人:Friesz Antal
公开号:US20140114081A1
公开(公告)日:2014-04-24
The invention relates to a novel process for preparation of dronedarone (I) and pharmaceutically acceptable salts thereof where the compound of formula (II) or salt thereof is reacted with a compound of formula L-(CH
2
)
3
—CH
3
(III), where L is a leaving group, and isolating the obtained product and, if desired, converting it into a pharmaceutically acceptable salt thereof. The invention also relates to some novel intermediary compounds and the preparation thereof.
REDUCTIVE AMINATION PROCESS FOR PREPARATION OF DRONEDARONE USING AMINE INTERMEDIARY COMPOUND
申请人:Friesz Antal
公开号:US20140018554A1
公开(公告)日:2014-01-16
The invention relates to a novel process for preparation of drohedarone of formula (I) and pharmaceutically acceptable salts thereof characterized in that a compound of formula (II) is reacted in the presence of a reductive agent with butyraldehyde and/or butanoic acid, and isolating the obtained product and, if desired, converting it into a pharmaceutically acceptable salt thereof. The invention also relates to some hovel intermediary compounds and the preparation thereof.