反应详情

4-(5-Amino-6-methylamino-pyrimidin-4-yl)piperazine-1-carboxylic acid t-butyl ester (200 mg) was dissolved in N,N-dimethylformamide (5.0 mL), and then 1-bromo-2-butyne (57 μL) and anhydrous potassium carbonate (107 mg) were added to this solution. The reaction solution was stirred at room temperature for 20 hours, and then poured into a saturated aqueous ammonium chloride solution. It was then extracted with ethyl acetate, and the obtained organic layer was washed with water and saturated brine. The obtained organic layer was dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography to give the title compound (118 mg).

1. extractionIt was then extracted with ethyl acetate
2. washthe obtained organic layer was washed with water and saturated brine
3. dry with materialThe obtained organic layer was dried over anhydrous magnesium sulfate
4. concentrationconcentrated under reduced pressure
5. customThe residue was purified by silica gel column chromatography