The present invention relates to a process for the preparation of enantiopure intermediates useful in the synthesis of valuable pharmaceutically active compounds, e.g. MAOB inhibitors, and to novel intermediates of formulae I and II
wherein R
21
, R
22
, R
23
and R
24
are as defined in the description and claims.
本发明涉及一种用于制备对合成有价值的药用活性化合物,例如MAOB
抑制剂的手性纯中间体的过程,并涉及式I和II的新型中间体,其中R21、
R22、R23和R24如描述和权利要求中所定义。