反应详情

温度

80 °C

A mixture of 2-(1-chloro-3-methylbutyl)-5-methoxy-3-methyl-1-benzofuran (380 mg) synthesized above, ethyl 3-{[(4-aminophenyl)carbonyl]amino}propanoate (350 mg) synthesized in Example 1(2), sodium iodide (443 mg), sodium carbonate (314 mg) and N,N-dimethylformamide (10 mL) was stirred at 80° C. for 5 hr. 1N Hydrochloric acid was added to quench the reaction, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, dried over magnesium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (50% ethyl acetate/hexane) to give the title object compound (266 mg, 40%) as a yellow oil.

1. customto quench
2. customthe reaction
3. extractionthe mixture was extracted with ethyl acetate
4. washThe extract was washed with saturated brine
5. dry with materialdried over magnesium sulfate
6. concentrationconcentrated under reduced pressure
7. customThe residue was purified by silica gel column chromatography (50% ethyl acetate/hexane)