反应详情

A suspension of 4-chloro-6-methoxy-7-(1-methylpiperidin-4-ylmethoxy)quinazoline (200 mg, 0.62 mmol) and 4-bromo-2-fluoroaniline (142 mg, 0.74 mmol) in isopropanol (3 ml) containing 6N hydrogen chloride in isopropanol (110 μl, 0.68 ml) was heated at reflux for 1.5 hours. After cooling, the precipitate was collected by filtration, washed with isopropanol followed by ether and dried under vacuum to give 4-(4-bromo-2-fluoroanilino)-6-methoxy-7-(1-methylpiperidin-4-ylmethoxy)quinazoline hydrochloride (304 mg, 90%).

1. temperaturewas heated
2. temperatureat reflux for 1.5 hours
3. temperatureAfter cooling
4. filtrationthe precipitate was collected by filtration
5. washwashed with isopropanol
6. customdried under vacuum