反应详情

温度

100 °C

5-Bromo-2,4-dichloropyrimidine (Aldrich; 1.14 g, 5.00 mmol), 3-ethylamino-N-methyl-propanamide (Intermediate 83; 0.642 g, 5.00 mmol) and triethylamine (0.71 mL, 5.10 mmol) were combined in acetonitrile (25 mL) and heated to 100° C. for 4 hrs. The solvent was removed under reduced pressure and the residue taken up in Ethyl Acetate, washed with water and purified by flash silica chromatography (companion, 40 g, 0-10% Methanol/DCM) to give the title compound as a white solid (1.06 g, 3.3 mmol, 66%).

1. customThe solvent was removed under reduced pressure
2. washwashed with water
3. custompurified by flash silica chromatography (companion, 40 g, 0-10% Methanol/DCM)