反应详情

A solution of 7-benzyloxy-4-chloro-6-methoxyquinazoline hydrochloride (800 mg, 2.4 mmol), (prepared as described for the starting material in Example 1), and 2-fluoro-5-methoxycarbonyloxy-4-methylaniline (570 mg, 2.89 mmol) in isopropanol (20 ml) was refluxed for 2 hours. After cooling to ambient temperature, the solid was filtered, washed with isopropanol and dried under vacuum to give 7-benzyloxy-4-(2-fluoro-5-methoxycarbonyloxy-4-methylanilino)-6-methoxyquinazoline hydrochloride (1.0 g, 87%) 1H NMR Spectrum: (DMSOd6; CF3COOD) 2.2(s, 3H); 3.85(s, 3H); 4.0(s, 3H); 5.37(s, 2H); 7.3-7.55(m, 8H); 8.13(s, 1H); 8.86(s, 1H) MS−ESI: 464 [MH]+

1. temperaturewas refluxed for 2 hours
2. filtrationthe solid was filtered
3. washwashed with isopropanol
4. customdried under vacuum