[EN] METHOD FOR THE PREPARATION OF 1-ARYL-1-ALKYL-2-ALKYL-3-DIALKYLAMINOPROPANE COMPOUNDS [FR] PROCÉDÉ DE PRÉPARATION DE COMPOSÉS 1-ARYL-1-ALKYL-2-ALKYL-3-DIALKYLAMINO-PROPANE
[EN] O-SUBSTITUTED (2R,3R)-3-(3-HYDROXYPHENYL)-2-METHYL-4-PENTENOIC ACIDS AND A METHOD OF OBTAINING THE SAME [FR] ACIDES (2R, 3R)-3-(3-HYDROXYPHÉNYLE)-2-MÉTHYL-4-PENTÉNOÏQUES O-SUBSTITUÉS ET LEUR PROCÉDÉ D'OBTENTION
Method for the preparation of 1-aryl-1-alkyl-3-dialkylaminopropane compounds
申请人:Siegfried AG
公开号:EP2674414A1
公开(公告)日:2013-12-18
The present invention refers to the preparation of 1-aryl-1-alkyl-2-alkyl-3-dialkylamino-propane compounds, such as tapentadol, using a diastereoselective Eschenmoser-Claisen or Ireland-Claisen rearrangement.
METHOD FOR THE PREPARATION OF 1-ARYL-1-ALKYL-2-ALKYL-3-DIALKYLAMINOPROPANE COMPOUNDS
申请人:SIEGFRIED AG
公开号:US20150183727A1
公开(公告)日:2015-07-02
The present invention refers to the preparation of 1-aryl-1-alkyl-2-alkyl-3-dialkylamino-propane compounds, such as tapentadol, using a diastereoselective Eschenmoser-Claisen or Ireland-Claisen rearrangement.