反应详情

温度

100 °C

A mixture of 5-[4-(cyclopropylsulfonyl)phenyl]-1-[5-(hydroxymethyl)-1,3-thiazol-2-yl]-6-(tetrahydro-2H-pyran-4-yl)hexane-1,4-dione (0.50 g), ammonium acetate (0.39 g) and acetic acid (4 mL) was stirred at 100° C. for 1 hr. The reaction mixture was neutralized with saturated aqueous sodium hydrogen carbonate, and extracted with ethyl acetate. The ethyl acetate layer was washed with saturated brine, dried (MgSO4) and concentrated. The residue was subjected to silica gel column chromatography, and the title compound (0.45 g, yield 95%) was obtained as a colorless amorphous solid from a fraction eluted with tetrahydrofuran-hexane (5:1, volume ratio). MS: 473 (MH+).

1. extractionextracted with ethyl acetate
2. washThe ethyl acetate layer was washed with saturated brine
3. dry with materialdried (MgSO4)
4. concentrationconcentrated