The invention relates to a novel process for the preparation of (3S,4S)- or (3R,4R)-1-benzyl-4-(halogen-aryl)-pyrrolidine-3-carboxylic acids of formula I
or salts thereof, wherein X and Y are each independently hydrogen or a halogen atom, with the proviso that at least one of X or Y is a halogen atom. The compounds of formula I are useful as starting materials or intermediates for the preparation of pharmaceutically active compounds, especially for compounds, which are useful for the treatment of central nervous system disorders.
本发明涉及一种新型工艺,用于制备式I的(3S,4S)-或(3R,4R)-1-苯甲基-4-(卤代芳基)-
吡咯烷-3-
羧酸或其盐,其中X和Y各自独立地表示氢或卤素原子,但至少其中的一个是卤素原子。式I的化合物可用作制药活性化合物的起始物或中间体,特别是用于治疗中枢神经系统疾病的化合物。