The invention relates to a method for obtaining enantiomerically enriched 6,7-dimethoxy-1-[2-(4-trifluoromethyl-phenyl)-ethyl]-1,2,3,4-tetrahydro-isoquinoline from a mixture of (R)-6,7-dimethoxy-1-[2-(4-trifluoromethyl-phenyl)-ethyl]-1,2,3,4-tetrahydro-isoquinoline and (S)-6,7-dimethoxy-1-[2-(4-trifluoromethyl-phenyl)-ethyl]-1,2,3,4-tetrahydro-isoquinoline.
该发明涉及一种从(R)-6,7-二甲氧基-1-[2-(4-三
氟甲基苯基)-乙基]-1,2,3,4-
四氢异喹啉和(S)-6,7-二甲氧基-1-[2-(4-三
氟甲基苯基)-乙基]-1,2,3,4-
四氢异喹啉混合物中获取对映体富集的6,7-二甲氧基-1-[2-(4-三
氟甲基苯基)-乙基]-1,2,3,4-
四氢异喹啉的方法。