反应详情

Analogously to Example 26, 100 mg (0.248 mmol) of 4-(3-chlorophenylamino)-3-(piperazin-1-yl)-1H-pyrazolo[3,4-d]pyrimidine dihydrochloride and 103 mg (0.74 mmol) of potassium carbonate in 10 ml of water are reacted with 38 mg (0.37 mmol) of acetic anhydride in 10 ml of dioxane to form 3-(4-acetyl-piperazin-1-yl)-4-(3-chlorophenylamino)-1H-pyrazolo(3,4-d]pyrimidine; HPLC: tRet(grad20-100/20)=10.8; FAB-MS: (M+H)+=372.