Triethylamine → HCID 71015144, compound

Participants

Reaction Conditions

Reaction Steps

Into a 100 mL round-bottom flask, was placed a solution of 3-[4-(2,5-difluoro-phenoxy)phenyl]-1-[(3R)-piperidin-3-yl]-1H-pyrazolo[3,4-d]pyrimidin-4-amine (300 mg, 0.71 mmol, 1.00 equiv) in dichloromethane (30 mL), HATU (400 mg, 1.05 mmol, 1.5 equiv), triethylamine (220 mg, 2.17 mmol, 3.0 equiv), and 2-cyanoacetic acid (90 mg, 1.06 mmol, 1.5 equiv). The resulting solution was stirred for 10 h at 25° C. and then washed with water and brine and dried over anhydrous sodium sulfate and concentrated. The residue was loaded onto a silica gel column and eluted with dichloromethane/methanol (10/1) to give 200 mg (58%) of 3-[(3R)-3-[4-amino-3-[4-(2,5-difluorophenoxy)phenyl]-1H-pyrazolo[3,4-d]pyrimidin-1-yl]piperidin-1-yl]-3-oxopropanenitrile as a white solid.

Provenance & Evidence