This invention relates to processes and intermediates for making {1-{1-[3-fluoro-2-(trifluoromethyl)isonicotinoyl]piperidin-4-yl}-3-[4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]azetidin-3-yl}acetonitrile, useful in the treatment of diseases related to the activity of Janus kinases (JAK) including inflammatory disorders, autoimmune disorders, cancer, and other diseases.PROCESOS PARA PREPARAR {1-{1-[3-FLUORO-2-(TRIFLUOROMETIL)ISONICOTINOIL]PIPERIDIN-4-IL}-3-[4-(7H-PIRROLO[2,3-D]PIRIMIDIN-4-IL)-1H-PIRAZOL-1-IL]AZETIDIN-3-IL}ACETONITRILO Y COMPUESTOS INTERMEDIARIOS, INHIBIDORES DE JAK; Y COMPUESTO INTERMEDIARIO (3-FLUORO-2-(TRIFLUOROMETIL)PIRIDIN-4-IL)(1,4-DIOXA-8-AZASPIRO[4,5]DECAN-8-IL)METANONA.