Water → HCID 89463674, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 5-oxo-2-(pyridin-3-yl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carbonitrile (50 mg, 0.21 mmol) in DMF (2 mL) was added NaH (17 mg, 0.42 mmol) at 0° C. The resulting mixture was stirred at 0° C. for 30 mins, then methyl iodide (30 mg, 0.21 mmol) was added. The mixture was stirred at 0° C. for an additional 30 mins. 1 mL of water was added to quench the reaction which was extracted with ethyl acetate. The combined organic extracts were dried, filtered and concentrated in vacuo. The residue was purified by HPLC to afford 4-methyl-5-oxo-2-(pyridine-3-yl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-3-carbonitrile: MS (m/z): 254.1 [M+H]+, 1H NMR (CD3OD, 400 MHz): δ8.06 (s, 1 H), 8.60 (d, 1 H, J=1.6 Hz), 8.36 (d, 1H, J=8.0 Hz), 7.59 (dd, 1 H, J=8.0 Hz, J=56 Hz), 4.44 (t, 2 H, J=7.6 Hz), 3.04 (t, 2H, J=7.6 Hz).

Provenance & Evidence