反应详情

温度

95 °C

A mixture of 6-benzyloxy-4-chloro-7-methoxyquinazoline (0.88 g, 2.9 mmol), (EP1153920 production examples 28-30), 4-fluoro-5-hydroxyindole (0.53 g, 3.5 mmol) and potassium carbonate (0.607 g, 4.39 mmol) in DMF (18 ml) was stirred at 95° C. for 2 hours. After cooling, the mixture was filtered and the volatiles were removed under vacuum. The residue was purified by column chromatography eluting with increasingly polar mixtures of methylene chloride and ethyl acetate to give 6-benzyloxy-4-(4-fluoroindol-5-yloxy)-7-methoxyquinazoline (0.8 g, 67%).

1. temperatureAfter cooling
2. filtrationthe mixture was filtered
3. customthe volatiles were removed under vacuum
4. customThe residue was purified by column chromatography
5. washeluting
6. temperaturewith increasingly polar mixtures of methylene chloride and ethyl acetate