The present invention refers to a new process for the synthesis of tapentadol comprising the quantitative resolution of the racemic mixture (V) to obtain the stereoisomer of (S)-3-(dimethylamino)-2-methyl-l-(3-nitrophenyl)-propan-l-one (VII) according to the Scheme 2 below (V, VI, VII) Scheme 2 using the (2R,3R)-O,O'-dibenzoyltartaric chiral acid wherein said resolution is quantitative. The present invention also refers to some intermediate compounds of the new synthesis process of tapentadol.
本发明涉及一种新的制备他痛定的方法,包括定量分离外消旋混合物(V)以获得立体异构体(S)-3-(
二甲氨基)-2-甲基-1-(3-
硝基苯基)-
丙酮-1-酮(VII),如下图2所示(V,VI,VII)方案2,使用(2R,3R)-O,O'-
二苯甲酰酒石酸手性酸进行分离,其中所述分离是定量的。本发明还涉及新的他痛定合成过程的一些中间化合物。