反应详情

温度

100 °C

A 70% aqueous ethylamine solution (2.14 g, 33.23 mmol) was added to ethyl 4-(2(4-(2-methylsulfonyloxyethyl)phenyl)ethylamino)-6-ethylpyrimidine-5-carboxylate (0.70 g, 1.66 mmol). The mixture was stirred at 100° C. for 2 hours in a sealed tube and cooled to room temperature. Then water (40 ml) was added to the reaction mixture. The mixture was extracted with methylene chloride and dried over magnesium sulfate. After evaporation of the solvent, the residue was purified by column chromatography on silica gel eluting with ethyl acetate/methanol (=8/2) to give the desired ethyl 4-(2-(4-(2-ethylaminoethyl)phenyl)ethylamino)-6-ethylpyrimidine-5-carboxylate (0.40 g, 65%).

1. temperaturecooled to room temperature
2. extractionThe mixture was extracted with methylene chloride
3. dry with materialdried over magnesium sulfate
4. customAfter evaporation of the solvent
5. customthe residue was purified by column chromatography on silica gel eluting with ethyl acetate/methanol (=8/2)