反应详情

A mixture of ethyl(E)-3-[1-[4-(5-methyl-2-phenyl-4-oxazolylmethoxy)benzyl]-4-(2-pyridyl)-3-pyrrolyl]propenoate (1.80 g), 5% palladium-carbon (2.32 g) and tetrahydrofuran (30 ml) was stirred overnight in a hydrogen atmosphere at room temperature. After the palladium-carbon was removed by filtration, the filtrate was concentrated. The residue was subjected to silica gel column chromatograpy, and ethyl 3-[1-[4-(5-methyl-2-phenyl-4-oxazolylmethoxy)benzyl]-4-(2-pyridyl)-3-pyrrolyl]propionate (1.61 g, yield: 89%) was obtained as an oily substance from the fraction eluted with ethyl acetate-hexane (1:2, volume ratio).

1. customAfter the palladium-carbon was removed by filtration
2. concentrationthe filtrate was concentrated