Reaktion #85932

Reaktionsgleichung

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

Ausbeute 94.1%

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

Ausbeute 94.1%

Lösungsmittel

water

Reaktionsbedingungen

Aufarbeitung

1. 1
   Extraktionextracted with methylene chloride three times
2. 2
   SonstigeThe combined organic phase is evaporated to dryness

Vorschrift

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]+.

Quelle