反应详情

To a stirred solution of 2-fluoro-4-[4-methyl-2-[4-(2-trimethylsilylthiazol-4-yl)phenyl]-1H-imidazol-1-yl]benzenesulfonamide (crude, 0.634 mmol) in THF (3 mL) was added tetrabutylammonium fluoride (0.95 mL, 1.0 M solution in THF, 0.95 mmol) at 0° C. The reaction mixture was warmed to room temperature and stirred for 30 minutes. The reaction mixture was added water (20 mL) and extracted with ethyl acetate (20 mL×3). The organic layer was washed with water and brine. After dried over MgSO4 and concentration in vacuo. The crude mixture was purified by flash chromatography eluting with hexane/ethyl acetate (1/3). The resulting solid was recrystallized from ethyl acetate-hexane to give the title compound (0.116 g, 44.1% yield, via 2 steps).

1. extractionextracted with ethyl acetate (20 mL×3)
2. washThe organic layer was washed with water and brine
3. dry with materialAfter dried over MgSO4 and concentration in vacuo
4. customThe crude mixture was purified by flash chromatography
5. washeluting with hexane/ethyl acetate (1/3)
6. customThe resulting solid was recrystallized from ethyl acetate-hexane