反应详情

温度

50 °C

To a solution of 2-(2-Isopropyl-5-methyl-2H-[1,2,4]triazol-3-yl)-8-pyrrolidin-2-yl-4,5-dihydro-6-oxa-1,3a-diaza-benzo[e]azulene (0.009 g, 0.00002 mol) in Acetic acid (4.06 uL, 0.0713 mmol) and water (0.13 mL) was added a solution of Potassium cyanate (0.00579 g, 0.0713 mmol) in water (0.13 mL) dropwise. N,N-Dimethylformamide (0.13 mL, 0.0017 mol) was added to solubilize the reagents. The reaction was stirred at 50° C. overnight, cooled down, filtered, and rinsed with cold water. The crude was purified by precipitation in MeOH/water to give 10 mg of each enantiomer 379 and 380. MS (ESI+) 422.2. 1H NMR (400 MHz, DMSO) δ 8.32 (d, J=8.3 Hz, 1H), 7.85 (s, 1H), 6.95 (dd, J=8.3, 1.6 Hz, 1H), 6.79 (d, J=1.3 Hz, 1H), 5.90-5.76 (m, 1H), 5.69 (br, 2H), 4.89 (dd, J=7.9, 1.3 Hz, 1H), 4.53-4.44 (m, 4H), 3.58-3.49 (m, 1H), 3.42-3.34 (m, 1H), 2.25 (s, 3H), 2.25-2.17 (m, 1H), 1.92-1.65 (m, 3H), 1.45 (dd, J=6.6, 3.9 Hz, 6H).

1. temperaturecooled down
2. filtrationfiltered
3. washrinsed with cold water
4. customThe crude was purified by precipitation in MeOH/water
5. customto give 10 mg of each enantiomer 379 and 380