反应详情

温度

120 °C

2-Chloro-4-(1-fluoroethyl)pyrimidine (58 mg, 0.36 mmol) and acetic acid (0.022 mL, 0.38 mmol) were added to an oven-dried flask containing methyl (2S)-3-[4-(3-amino-5-methylphenyl)-1H-pyrazol-1-yl]-2-hydroxypropanoate (100 mg, 0.36 mmol) in dioxane (1.2 mL). The mixture was stirred for 3 hours at 120° C. then cooled to room temperature, diluted with water, and extracted with EtOAc (3×). The combined organic layers were dried over sodium sulfate, filtered and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel (2 to 100% EtOAc/hexanes) to afford methyl (2S)-3-[4-(3-{[4-(1-fluoroethyl)pyrimidin-2-yl]amino}-5-methylphenyl)-1H-pyrazol-1-yl]-2-hydroxypropanoate. MS ESI calcd. for C20H23FN5O3 [M+H]+ 400. found 400.

1. temperaturethen cooled to room temperature
2. extractionextracted with EtOAc (3×)
3. dry with materialThe combined organic layers were dried over sodium sulfate
4. filtrationfiltered
5. concentrationconcentrated under reduced pressure
6. customThe residue was purified by column chromatography on silica gel (2 to 100% EtOAc/hexanes)