反应详情

温度

150 °C

To a suspension of 5-bromo-2-cyclopropyl-3-methyl-2H-indazole (2.0 g), 4-[(4-fluorobenzyl)oxy]pyridin-2(1H)-one (1.7 g) and potassium carbonate (3.3 g) in DMSO (20 ml) were added copper(I) iodide (1.5 g) and N,N′-dimethylethylenediamine (0.7 g), and the mixture was stirred at 150° C. for 3 hr. The reaction mixture was added to 28% aqueous ammonia, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (ethyl acetate/methanol) and recrystallized from ethyl acetate to give the title compound (2.17 g).

1. extractionthe mixture was extracted with ethyl acetate
2. washThe organic layer was washed with saturated brine
3. dry with materialdried over anhydrous magnesium sulfate
4. concentrationconcentrated under reduced pressure
5. customThe obtained residue was purified by silica gel column chromatography (ethyl acetate/methanol)
6. customrecrystallized from ethyl acetate