Table 3. Synthesis of Quinazolin-2,4-diones Derivative 5a–na.
All reactions were conducted using 1a–n (1 mmol, 1.0 equiv), (Boc)2O (1.5 mmol, 1.5 equiv), DMAP (0.1 mmol, 0.1 equiv), CH3CN (3.0 mL), under the MW condition for 30 min, isolated yield.
All reactions were conducted using 1a–n (1 mmol, 1.0 equiv), (Boc)2O (1.5 mmol, 1.5 equiv), DMAP (0.1 mmol, 0.1 equiv), CH3CN (3.0 mL), under the MW condition for 30 min, isolated yield.