Reaktion #86492

Reaktionsgleichung

1-(6-((2-aminophenyl)amino)pyrimidin-4-yl)-3-(2,6-dichloro-3,5-dimethoxyphenyl)-1-methylurea

triethylamine

(Z)-but-2-enoic acid

DCM

2,4,6-tripropyl-1,3,5,2,4,6-trioxatriphosphinane 2,4,6-trioxide

→

title compound

Ausbeute 37.2%

(Z)—N-(2-((6-(3-(2,6-dichloro-3,5-dimethoxyphenyl)-1-methylureido)pyrimidin-4-yl)amino)phenyl)but-2-enamide

Ausbeute 37.2%

Reaktionsbedingungen

Aufarbeitung

1. 1
   SonstigeThe title compound was synthesized
2. 2
   EinengenThe mixture was concentrated
3. 3
   Sonstigethe residue was purified by silica gel column

Vorschrift

The title compound was synthesized following the approach outlined in Procedure 2A (Example 100), modifying step (i) to the following procedure: To a solution of 1-(6-((2-aminophenyl)amino)pyrimidin-4-yl)-3-(2,6-dichloro-3,5-dimethoxyphenyl)-1-methylurea (20 mg, 0.043 mmol), triethylamine (21.8 g, 0.22 mmol), and (Z)-but-2-enoic acid (4.5 g, 0.052 mmol) in DCM (0.86 ml, 13.3 mmol) was added a solution of 2,4,6-tripropyl-1,3,5,2,4,6-trioxatriphosphinane 2,4,6-trioxide (49.4 g, 0.78 mmol, 50% solution EtOAc) at 0° C., and the resulting mixture was stirred at room temperature for 2 h. The mixture was concentrated and the residue was purified by silica gel column to obtain the title compound (8.5 mg, yield: 37%). 1H NMR (400 MHz, CDCl3) δ 2.20 (dd, J=7.28, 1.76 Hz, 3H) 3.30 (s, 3H) 3.92 (s, 6H) 5.85 (dd, J=11.42, 1.76 Hz, 1H) 5.99 (s, 1H) 6.29 (dd, J=11.36, 7.34 Hz, 1H) 6.52 (s, 1H) 7.23-7.34 (m, 2H) 7.46 (d, J=7.40 Hz, 1H) 7.55 (br. s., 1H) 7.78 (d, J=7.53 Hz, 1H) 8.40 (d, J=0.88 Hz, 1H) 12.50 (s, 1H); MS (ESI): 531.3 [M+H]+.

Quelle