Trifluoroacetic acid → 1-(2-Cyano-1-[4-(7h-pyrrolo[2,3-d]pyrimidin-4-yl)-1h-pyrazol-1-yl]ethyl)cyclopropanecarbonitrile trifluoroacetate salt

Participants

Reaction Steps

1-{2-cyano-1-[4-(7-[2-(trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]ethyl}cyclopropanecarbonitrile (48 mg, 0.11 mmol) was stirred in a mixture of DCM (3 mL) and TFA (2 mL) for 3 hours. The solvents were removed in vacuo and the residue was re-dissolved in THF (3 mL). 6N NaOH (2 mL) was added and the resulting mixture was stirred at ambient temperature for 3 hours. The crude reaction mixture was partitioned between ethyl acetate and water. The layers were separated and the organic layer was dried over sodium sulfate and the solvent was removed in vacuo. Purification via preparative-HPLC/MS (C18 eluting with a gradient of H2O and ACN containing 0.1% TFA) afforded product (20 mg, 43%).

Provenance & Evidence