反应详情

温度

0 °C

The 1,1,1-trifluoro-2-(2-((2S)-2-methyl-1-piperazinyl)-5-pyrimidinyl)-2-propanol hydrochloride (95 mg, 0.291 mmol) was dissolved in CH2Cl2 (15 mL) was chilled to 0° C. To this solution was added triethylamine (101 μL, 0.727 mmol) followed by 5-nitrothiophene-2-sulfonyl chloride (66.2 mg, 0.291 mmol, Enamine Building Blocks, Kiev, Ukraine). The mixture was warmed slowly to room temperature and stirred for 2 h. Afterwards, the mixture was concentrated onto silica gel and then purified via column chromatography (24 g silica gel, 0 to 10% MeOH in CH2Cl2) to give racemic 2-(2-((2S)-4-((5-nitro-2-thiophenyl)sulfonyl)-2-methyl-1-piperazinyl)-5-pyrimidinyl)-1,1,1-trifluoro-2-propanol (108 mg).

1. temperatureThe mixture was warmed slowly to room temperature
2. concentrationAfterwards, the mixture was concentrated onto silica gel
3. custompurified via column chromatography (24 g silica gel, 0 to 10% MeOH in CH2Cl2)