Phenol → 5-methyl-7-neopentyl-3-phenoxy-2-(4-(pyridin-4-yl)benzyl)-2H-pyrazolo[3,4-d]pyrimidine-4,6(5H,7H)-dione

Participants

Reaction Conditions

Reaction Steps

3-chloro-5-methyl-7-neopentyl-2-(4-(pyridin-4-yl)benzyl)-2H-pyrazolo[3,4-d]pyrimidine-4,6(5H,7H)-dione (30 mg, 0.069 mmol), potassium carbonate (29 mg, 0.2 mmol) and phenol (20 mg, 0.20 mmol) are placed in a Biotage microwave vial, and then 0.3 mL of dioxane is added. The vial is sealed, and then heated in a Biotage microwave instrument at 150° C. for 3 h. The reaction mixture is diluted with DMF, and then filtered. The filtrate is purified with a semi-preparative HPLC to give 23 mg of pure product as pale yellow solids. MS (ESI) m/z 496.2 [M+H]+.

Provenance & Evidence