Water → HCID 68109074, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 3-(3-bromo-phenyl)-6-chloro-1-trityl-1H-pyrazolo[3,4-d]pyrimidine (from Example 42 supra) (1.10 g, 2.0 mmol) in DMF (20 mL) was add DIPEA (0.39 g, 2.8 mmol) and (4-amino-cyclohexyl)-carbamic acid tert-butyl ester (0.60 g, 2.8 mmol). This mixture was stirred at 120° C. for 12 hours. After cooling to room temperature, the reaction mixture was poured into water (100 mL) and the resulting precipitate was collected by filtration. The obtained yellow solid was purified by chromatography (silica gel, MeOH:dichloromethane, 1:100) to give a light solid which was washed with ether (4 mL) to give {4-[3-(3-bromo-phenyl)-1-trityl-1H-pyrazolo[3,4-d]pyrimidin-6-ylamino]-cyclohexyl}-carbamic acid tert-butyl ester as a white solid. (Yield 730 mg, 50.1%).

Provenance & Evidence