反应详情

温度

100 °C

150 mg of (S)-6-chloro-N2-[1-(4-fluorophenyl)ethyl]-N4-(pyrazin-2-yl)pyrimidine-2,4-diamine (Example 9), 224 mg of 2-imidazolidinone, 26 mg of 4,5-bis(diphenylphosphino)-9,9′-dimethylxanthene, 185 mg of tripotassium phosphate and 23 mg of tris(dibenzylideneacetone)(chloroform)dipalladium were added in turn to 5 ml of degassed 1,4-dioxane, and then the mixture was stirred at 100° C. for 2 hours under argon atmosphere. The reaction solution was diluted with ethyl acetate. The solution was washed with water, and then dried over magnesium sulfate. The solvent was distilled off under reduced pressure, and then the obtained residue was purified by silica gel column chromatography to obtain 80 mg of (S)-1-{2-[1-(4-fluorophenyl)ethylamino]-6-(pyrazin-2-ylamino)pyrimidin-4-yl}imidazolidin-2-one as white powder. Furthermore, the obtained compound was subjected to hydrochlorination using a conventional method to obtain 56 mg of the objective compound as pale yellow powder.

1. washThe solution was washed with water
2. dry with materialdried over magnesium sulfate
3. distillationThe solvent was distilled off under reduced pressure
4. customthe obtained residue was purified by silica gel column chromatography