反应详情

温度

60 °C

To a solution of 7-hydroxy-6-methoxy-4-(2-fluoro-4-chlorophenylamino)quinazoline (5.56 g, 17.4 mmol) in DMF (100 ml) containing potassium carbonate (4.8 g, 34.8 mmol) was added 1-bromo-2,3-epoxypropane (1.49 ml, 17.4 mmol). The mixture was stirred at 60° C. for 3 hours. After cooling, water (400 ml) was added The precipitate was filtered and dried under vacuum at 60° C. for 2 hours over P2O5. The product was purified by column chromatography eluting with methylene chloride followed by methylene chloride/methanol saturated with ammonia 98/2. The fractions containing the expected product were combined and evaporated to give 4-(4-chloro-2-fluorophenylamino)-7-(2,3-epoxypropoxy)-6-methoxyquinazoline (2.82 g, 43%).

1. temperatureAfter cooling
2. filtrationwas filtered
3. dry with materialdried under vacuum at 60° C. for 2 hours over P2O5
4. customThe product was purified by column chromatography
5. washeluting with methylene chloride
6. additionThe fractions containing the expected product
7. customevaporated