反应详情

To tert-butyl cyclopropyl(3-formyl-5-(3-hydroxyphenyl)pyrazolo[1,5-a]pyrimidin-7-yl)carbamate (400 mg, 1.01 mmol) in methylene chloride (20 mL) was added TFA (10 mL). The reaction mixture was stirred at room temperature for 2 h. The volatiles were removed by rotary evaporation and the residue was purified by silica gel chromatography (0%-40% EtOAc/hexanes) to provide 103 mg of 7-(cyclopropylamino)-5-(3hydroxyphenyl)pyrazolo[1,5-a]pyrimidine-3-carbaldehyde. (35%). LCMS (M+1=295)

1. customThe volatiles were removed by rotary evaporation
2. customthe residue was purified by silica gel chromatography (0%-40% EtOAc/hexanes)