反应详情

The title compound was synthesized following the approach outlined in Procedure 2C (Example 108), modifying step (g) to the following procedure: To a solution of 1-(6-((2-amino-4-(4-ethylpiperazin-1-yl)phenyl)amino)pyrimidin-4-yl)-3-(2,6-dichloro-3,5-dimethoxyphenyl)-1-methylurea (11 g, 0.019 mmol), triethylamine (9.67 g, 0.096 mmol), and (Z)-3-chloroacrylic acid (2.43 g, 0.023 mmol) in DCM (0.4 ml, 6.21 mmol) was added a solution of 2,4,6-tripropyl-1,3,5,2,4,6-trioxatriphosphinane 2,4,6-trioxide (21.9 g, 0.034 mmol) at 0° C., and the resulting mixture was stirred at room temperature for 30 min. The mixture was concentrated and the residue was purified by silica gel column to obtain the title compound (7.5 mg, yield: 59%). 1H NMR (400 MHz, CDCl3) δ 1.29 (t, J=8.0 Hz, 3H) 2.90 (br. s., 4H) 3.27 (s, 3H) 3.45 (t, J=4.64 Hz, 4H) 3.91 (s, 6H) 5.90 (s, 1H) 6.32 (d, J=8.41 Hz, 1H) 6.52 (s, 1H) 6.59 (d, J=8.41 Hz, 1H) 6.73 (dd, J=8.78, 2.76 Hz, 1H) 7.09 (br. s., 1H) 7.24 (s, 2H) 7.83 (br. s., 1H) 8.36 (s, 1H) 8.69 (br. s., 1H) 12.52 (s, 1H); MS (ESI): 663.1 [M+H]+.

1. customThe title compound was synthesized
2. concentrationThe mixture was concentrated
3. customthe residue was purified by silica gel column