反応 #85932

反応方程式

DMF

2-(4-(6-fluoropyridin-2-yl)benzyl)-5-methyl-2H-pyrazolo[3,4-d]pyrimidine-4,6(5H,7H)-dione

isobutyl iodide

potassium carbonate

→

crude product

収率 94.1%

2-(4-(6-fluoropyridin-2-yl)benzyl)-7-isobutyl-5-methyl-2H-pyrazolo[3,4-d]pyrimidine-4,6(5H,7H)-dione

収率 94.1%

溶媒

water

反応条件

後処理

1. 1
   抽出extracted with methylene chloride three times
2. 2
   その他The combined organic phase is evaporated to dryness

実験手順

2-(4-(6-fluoropyridin-2-yl)benzyl)-5-methyl-2H-pyrazolo[3,4-d]pyrimidine-4,6(5H,7H)-dione (422 mg, 1.2 mmol), isobutyl iodide (276 μL, 2.4 mmol) and potassium carbonate (497 mg, 3.6 mmol) are place in a Biotage microwave vial, and then DMF (6 mL) is added. The mixture is heated in a Biotage microwave instrument at 140° C. for 30 min. The mixture is diluted with water (150 mL), and then extracted with methylene chloride three times. The combined organic phase is evaporated to dryness to give 460 mg of crude product as pale yellow solids, which is used in the next step without further purification. MS (ESI) m/z 408.2 [M+H]+.

出典