Diisopropylethylamine → tert-butyl 4-(1-(4-chlorophenyl)-3-(methylsulfonamido)propylcarbamoyl)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidin-4-ylcarbamate

Participants

Reaction Conditions

Reaction Steps

O-(7-Azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluoro-phosphate (245 mg, 0.65 mmol) was added in one portion to 4-(tert-butoxycarbonylamino)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidine-4-carboxylic acid (Intermediate 1) (155 mg, 0.43 mmol) and N,N-diisopropylethylamine (0.213 mL, 1.29 mmol) in NMP (2 mL) at 20° C. under nitrogen. The resulting solution was stirred at 20° C. for 5 minutes. N-(3-amino-3-(4-chlorophenyl)propyl)methanesulfonamide (Intermediate 116) (113 mg, 0.43 mmol) in NMP (2 mL) was then added to the reaction and stirred for 18 hours. The reaction mixture was concentrated and diluted with EtOAc (20 mL) and washed with water (20 mL). The organic layer was dried over MgSO4, filtered and evaporated to afford tert-butyl 4-(1-(4-chlorophenyl)-3-(methylsulfonamido)propylcarbamoyl)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidin-4-ylcarbamate (261 mg, 100%).

Provenance & Evidence