[EN] PROCESS FOR THE PREPARATION OF N,N-DIISOPROPYL-3-(2-HYDROXY-5-METHYLPHENYL)- 3-PHENYL PROPYLAMINE AND ITS SALTS STARTING FROM A NOVEL INTERMEDIATE<br/>[FR] PROCÉDÉ POUR LA PRÉPARATION DE N,N-DIISOPROPYL-3-(2-HYDROXY-5-MÉTHYLPHÉNYL)-3-PHÉNYLPROPYLAMINE ET DE SES SELS À PARTIR D'UN NOUVEL INTERMÉDIAIRE
申请人:CAMBREX PROFARMACO MILANO S R L
公开号:WO2012098044A1
公开(公告)日:2012-07-26
The invention concerns an improved process for the preparation of tolterodine (N,N-diisopropyl-3-(2-hydroxy-5-methylphenyl)-3-phenyl propyl amine) and its salts, in particular for the preparation of the tartrate salt, and more particularly for the (+)-(R) enantiomer of tolterodine L-tartrate, starting from a novel intermediate, N,N-diisopropyl-3-(2-hydroxy-5-methylphenyl)-3- phenyl-2-propenamide, which can be used as pure Z or E isomer or as a mixture of Z and E isomers. When the target is the preparation of the enantiomer (R)-(+)-(N,N- diisopropyl-3-(2-hydroxy-5-methylphenyl)-3-phenylpropylamine) and diastereomeric crystallization of suitable compound is applied, the present invention covers also the use of racemisation of undesired (S)-(-)- (N,N-diisopropyl-3-(2-hydroxy-5-methylphenyl)-3 -phenyl propylamine) enantiomer and its recycle in the process.
该发明涉及一种改进的制备托特罗定(N,N-二异丙基-3-(2-羟基-5-甲基苯基)-3-苯基丙胺)及其盐的过程,特别是制备酒石酸盐,更具体地是制备托特罗定L-酒石酸盐的(+)-(R)对映体的过程,从一种新型中间体N,N-二异丙基-3-(2-羟基-5-甲基苯基)-3-苯基-2-丙烯酰胺开始,该中间体可用纯Z或E异构体或Z和E异构体混合物形式使用。当目标是制备对映体(R)-(+)-(N,N-二异丙基-3-(2-羟基-5-甲基苯基)-3-苯基丙胺)并且适当化合物的二对映体结晶被应用时,该发明还涵盖了对不需要的(S)-(-)-(N,N-二异丙基-3-(2-羟基-5-甲基苯基)-3-苯基丙胺)对映体的消旋化及其在过程中的再循环的用途。