Water → HCID 57855799, compound

Participants

Reaction Steps

A 0.12 g quantity of the compound obtained in Example 229 and 0.14 ml of DBU were dissolved in 3 ml of ethanol, 0.12 g of 4-bromo-1-butene was then added to the obtained solution, and heating and refluxing were conducted overnight. After cooling, water was added to the obtained reaction mixture, and ethyl acetate extract was performed. The organic layer was washed twice with water, concentrated under reduced pressure, and the obtained residue was purified by silica gel column chromatography (n-hexane:ethyl acetate=3:1). The obtained crystals were recrystallized from ethanol, thereby yielding 80 mg of white powdery 3-[2-(3-but-3-enyloxy-4-difluoromethoxyphenyl)oxazol-4-yl]-1-(2-ethoxyphenyl)propan-1-one.

Provenance & Evidence