反应详情

温度

40 °C

A mixture of 1,3-dimethyl-N-[3-({2-[(trifluoroacetyl)amino]imidazo[1,2-a]pyridin-6-yl}oxy)phenyl]-1H-pyrazole-5-carboxamide (328 mg, 0.715 mmol), 1N aqueous sodium hydroxide solution (3 mL) and ethanol (3 mL) was stirred at 40° C. for 2 hr. The reaction mixture was diluted with water and extracted with ethyl acetate (×3). The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and filtrated. The filtrate was concentrated under reduced pressure, and the residue was purified by column chromatography (silica gel, methanol/ethyl acetate=0/100→20/80) to give the title compound (205 mg, 79%) as a white solid.

1. extractionextracted with ethyl acetate (×3)
2. washThe organic layer was washed with saturated brine
3. dry with materialdried over anhydrous magnesium sulfate
4. filtrationfiltrated
5. concentrationThe filtrate was concentrated under reduced pressure
6. customthe residue was purified by column chromatography (silica gel, methanol/ethyl acetate=0/100→20/80)