反应详情

Acetic anhydride (0.035 ml, 0.38 mmol) was added dropwise to a methylene chloride solution (6 ml) of 5-{8-[(3S)-3-ethylpiperazin-1-yl]-6-morpholin-4-yl-9-(2,2,2-trifluoroethyl)-9H-purin-2-yl}pyrimidin-2-amine (123 mg, 0.25 mmol) and triethylamine (0.069 ml, 0.50 mmol) with ice cooling and the resulting mixture was stirred at room temperature for 1.5 hours. The resulting mixture was partitioned with ethyl acetate and saturated aqueous ammonium chloride solution and the organic layer was washed with saturated brine and dried over anhydrous sodium sulfate, the mixture was filtrated, the filtrate was concentrated under reduced pressure, and the resulting residue was purified by preparative thin layer silica gel chromatography (chloroform:methanol=95:5) to give the title compound (92 mg) as a pale yellow solid.

1. customThe resulting mixture was partitioned with ethyl acetate and saturated aqueous ammonium chloride solution
2. washthe organic layer was washed with saturated brine
3. dry with materialdried over anhydrous sodium sulfate
4. filtrationthe mixture was filtrated
5. concentrationthe filtrate was concentrated under reduced pressure
6. customthe resulting residue was purified by preparative thin layer silica gel chromatography (chloroform:methanol=95:5)