Water → HCID 57855772, compound

Participants

Reaction Steps

An 80 mg quantity of the compound obtained in Example 327 and 0.09 ml of 1,8-diazabicyclo[5,4,0]undec-7-ene were dissolved in 2 ml of ethanol, and 80 mg 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 extraction 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 aqueous 80% ethanol, thereby yielding 22 mg of white powdery 3-[2-(3-but-3-enyloxy-4-difluoromethoxyphenyl)-oxazol-4-yl]-1-(3-methylpyridin-2-yl)propan-1-one

Provenance & Evidence