反应详情

To a solution of 2-amino-3-(3-isopropoxy-phenyl)-3H-quinazolin-4-one (295 mg, 1.0 mmol) in anhydrous DMF (10 mL) was added 50% NaH (48 mg, 1 mmol) at room temperature and stirred for 30 minutes. To this mixture was added, 4-bromo phenyl isocyanate and stirred for 2 hours at room temperature. The reaction mixture was quenched with water and concentrated. It was then diluted with ethyl acetate and filtered. The filtrate was concentrated and chromatographed using 100% CH3Cl to isolate pure product as a white solid (70 mg, 14.2%), mp 230°-233° C.

1. additionTo this mixture was added
2. customThe reaction mixture was quenched with water
3. concentrationconcentrated
4. additionIt was then diluted with ethyl acetate
5. filtrationfiltered
6. concentrationThe filtrate was concentrated
7. customchromatographed