反应详情

温度

50 °C

5-chloro-pyrazolo[1,5-a]pyrimidine-3-carboxylic acid [5-(5-chloro-2-difluoromethoxy-phenyl)-1-(2-trimethylsilanyl-ethoxymethyl)-1H-pyrazol-4-yl]-amide (756 mg, 1.32 mmol) was dissolved in THF (10 mL) and concentrated aqueous ammonia (10 mL) added. The mixture was heated at 50° C. for 3 hours then allowed to cool to ambient temperature. The solvent was evaporated and the residue azeotroped with methanol (×2) to afford 5-amino-pyrazolo[1,5-a]pyrimidine-3-carboxylic acid [5-(5-chloro-2-difluoromethoxy-phenyl)-1-(2-trimethylsilanyl-ethoxymethyl)-1H-pyrazol-4-yl]-amide as a white solid (724 mg, 99%). LCMS (Method 4) [M+H]+=549.9, RT=4.11 min.

1. temperatureto cool to ambient temperature
2. customThe solvent was evaporated
3. customthe residue azeotroped with methanol (×2)