Potassium Carbonate → 5-(5-fluoro-pyridin-2-yl)-2-hydroxymethyl-6,7-dihydro-5H-pyrazolo[1,5-a]pyrazin-4-one

참여 물질

반응 단계

Potassium carbonate (63 mg, 0.46 mmol) was added to a stirred suspension of acetic acid 5-(5-fluoro-pyridin-2-yl)-4-oxo-4,5,6,7-tetrahydro-pyrazolo[1,5-a]pyrazin-2-ylmethyl ester (70 mg, 0.23 mmol) in MeOH (1 mL). The mixture was stirred at room temperature for 16 hours. The solvent was evaporated in vacuo. The crude product was purified by flash column chromatography (silica, 7 N solution of ammonia in MeOH in DCM 0/100 to 10/90). The desired fractions were collected and the solvents evaporated in vacuo to yield 5-(5-fluoro-pyridin-2-yl)-2-hydroxymethyl-6,7-dihydro-5H-pyrazolo[1,5-a]pyrazin-4-one (30 mg, 50% yield) as a white solid.

출처 및 근거