The invention concerns an improved process for the preparation of tolterodine (N,N-diisopropyl-3-(2-hydroxy-5-methylphenyl)-3-phenyl propylamine) and its salts, in particular for the preparation of the tartrate salt, and more in particular 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.
这项发明涉及一种改进的制备替洛特定(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,更特别是从一种新的中间体N,N-
二异丙基-3-(2-羟基-5-甲基苯基)-3-苯基-2-
丙烯酰胺开始制备(+)-(R)对映体替洛特定
L-酒石酸盐,该中间体可用作纯Z或E异构体,也可用作Z和E异构体的混合物。