A process for making (2S,5R)-5-ethynyl-1-N-(4-methyl-1-(4-carboxy-pyridin-2-yl)piperidin-4-yl)glycyl}pyrrolidine-2-carbonitrile and salts thereof, and intermediates used in the process are disclosed.
本发明公开了制备(2S,5R)-5-
乙炔基-1-N-(4-甲基-1-(4-羧基
吡啶-2-基)
哌啶-4-基)甘
氨酰基}
吡咯烷-2-羧腈及其盐的过程,以及用于该过程的中间体。