反应详情

温度

120 °C

Into a round bottom flask was added 5-(8-amino-3-cyclobutylimidazo[1,5-a]pyrazin-1-yl)-2-fluorobenzonitrile (30 mg, 0.0001 mol), phenol (0.023 g, 0.00024 mol), potassium carbonate (0.040 g, 0.00029 mol), DMF (0.8 mL, 0.01 mol) and the reaction mixture was heated at 120° C. for 4 h. Purification by Gilson HPLC afforded 11.4 mg of the title compound as a white solid. 1H NMR (400 MHz, CDCl3): δ=1.98-2.11 (m, 1H), 2.12-2.26 (m, 1H), 2.44-2.55 (m, 2H), 2.55-2.67 (m, 2H), 3.82 (dq, J=8.72, 8.55 Hz, 1H), 5.04 (br. s., 2H), 6.98 (d, J=8.84 Hz, 1H), 7.09 (d, J=5.05 Hz, 1H), 7.12-7.17 (m, 3H), 7.26-7.29 (m, 1H), 7.40-7.48 (m, 2H), 7.79 (dd, J=8.59, 2.27 Hz, 1H), 8.02 (d, J=2.02 Hz, 1H). MS (ES+): m/z 381.94 (100)[MH+]. HPLC: tR=2.53 min (Open Lynx, polar—5 min).

1. customPurification by Gilson HPLC