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-1-(3-nitrophenyl)-propan-1-one (VII) according to the Scheme 2 below
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.
本发明涉及一种合成tapentadol的新工艺,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,使用(2R,3R)-O,O'-二苯乙酰
酒石酸手性酸进行分离,其中所述分离是定量的。本发明还涉及新合成工艺的一些中间化合物。