反应详情

To a solution of (7-hydroxy-2-benzofuranyl)(5-methyl-3-phenyl-4-isoxazolyl)methanone (example 4) (100 mg, 0.31 mmol) in DMF (5 mL) was added N-(chloroacetyl)isopropylamine (47 mg, 0.34 mmol) and potassium carbonate (173 mg, 1.25 mmol) and the reaction mixture was stirred at room temperature for 4 h. The mixture was then poured onto ice-water, and extracted with ethyl acetate. The combined organic layers were then washed with water and brine, dried over Na2SO4 and evaporated. Purification by chromatography (SiO2, heptane:ethyl acetate:=100:0 to 1:1) afforded the title compound (37 mg, 28%) as a white solid. MS m/e: 419.3 [M+H]+.

1. additionThe mixture was then poured onto ice-water
2. extractionextracted with ethyl acetate
3. washThe combined organic layers were then washed with water and brine
4. dry with materialdried over Na2SO4
5. customevaporated
6. customPurification by chromatography (SiO2, heptane:ethyl acetate:=100:0 to 1:1)