反应详情

温度

120 °C

2-chloro-6,7-dimethoxy-N-(4-methylphenyl)-4-quinazolinamine (0.099 g, 0.3 mmol) prepared according to the procedures described in Gazit et al (Bioorg Med Chem, 1996, 4:1203) was added to a solution of (49) (0.10 g, 0.37 mmol) in n-pentanol (5 mL) at 25° C. The mixture was heated to 120° C. and maintained at that temperature for 12 h. The reaction mixture was then cooled to room temperature and the desired product was filtered and rinsed with acetone to give 0.146 g (85.3%) of the title compound: TLC (Rf =0.40; 5% MeOH/CH2Cl2); 1H NMR (DMSO) δ 12.41 (br s, 1H), 10.71 (br s, 1H), 8.08 (s, 1H), 7.63 (d, 2H, J=8.7), 7.57 (s, 1H), 7.55 (d, 2H, J=8.3), 7.24 (d, 2H, J=8.3), 6.63 (d, 2H, J=8.8), 6.44 (d, 1H, J=6.9), 4.41 (d, 2H, J=12.9), 3.91 (s, 3H), 3.89 (s, 3H), 3.73 (m, 1H), 3.42 (m, 2H), 2.31 (s, 3H), 2.03 (d, 2H, J=10.8), 1.49 (s, 9H), 1.41 (m, 2H); 13C NMR (DMSO) δ 165.2, 157.2, 155.2, 151.3, 150.7, 146.9, 136.6, 134.7, 130.9, 129.0, 124.0, 117.7, 111.2, 104.6, 102.3, 99.3, 79.0, 56.5, 56.1, 47.9, 43.7, 30.8, 28.0, 20.6; HRMS (FAB) m/z 570.3070 (M+H)+ (C33H39N5O4 requires 570.3080); Anal. (C33H39N5O4 ·1HCl) C, H, N.

1. temperaturemaintained at that temperature for 12 h
2. temperatureThe reaction mixture was then cooled to room temperature
3. filtrationthe desired product was filtered
4. washrinsed with acetone