反应详情

Tert-butyl 4-(1-(4-chlorophenyl)-2-sulfamoylethylcarbamoyl)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidin-4-ylcarbamate (Intermediate 81) (153 mg, 0.26 mmol) was treated with trifluoroacetic acid (4 mL). The solution was stirred for 30 minutes at room temperature. The mixture was concentrated under reduced pressure and the residue was purified by ion exchange chromatography, using an SCX column. The desired product was eluted from the column using ammonia in methanol (2M) and pure fractions were evaporated to dryness to afford 4-amino-N-(1-(4-chlorophenyl)-2-sulfamoylethyl)-1-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)piperidine-4-carboxamide (125 mg, 99%) as a colourless solid.

1. concentrationThe mixture was concentrated under reduced pressure
2. customthe residue was purified by ion exchange chromatography
3. washThe desired product was eluted from the column
4. customwere evaporated to dryness