反应详情

To a suspension of 2-[4-(2-bromo-ethoxy)-3,5-dimethyl-phenyl]-5,7-dimethoxy-3H-quinazolin-4-one (0.22 g, 0.50 mmol) in DMF (2 mL) was added hexamethyleneimine(azepane) (0.22 mL, 2.0 mmol) and the reaction mixture was stirred at room temperature for 17 hours. Saturated aqueous NaHCO3 solution (2 mL) was added and stirred for 2 hours. Water (10 mL) was added and stirred for another 0.5 hours. The solid was filtered, washed with water, and dried under vacuum to give the title compound as a white solid. Yield: 0.22 g (95%). MP 198-199° C. 1H NMR (400 MHz, CD3OD): δ 7.70 (s, 2H), 6.79 (s, 1H), 6.55 (s, 1H), 3.97 (t, J=6.0 Hz, 2H), 3.92 (s, 3H), 3.91 (s, 3H), 2.98 (t, J=6.0 Hz, 2H), 2.82 (t, J=5.2 Hz, 4H), 2.37 (s, 6H), 1.72 (m, 4H), 1.66 (m, 4H). MS (ES+) m/z: 452.27 (M+1). Analysis calculated for C26H33N3O4 (451.56), %: C, 69.16; H, 7.37; N, 9.31. Found, %: C, 68.94; H, 6.90; N, 9.30.

1. stirringstirred for 2 hours
2. stirringstirred for another 0.5 hours
3. filtrationThe solid was filtered
4. washwashed with water
5. customdried under vacuum