反应详情

DEAD (0.85 ml) was added dropwise over 2 minutes to a stirred suspension of methyl 3-(4-fluorophenethyl)-6-hydroxypyridin-2-carboxylate (1.0 g), 2-(1-methylimidazol-5-yl)-1-(4-fluorophenyl)ethanol (0.80 g) and triphenylphosphine (1.43 g) in THF (70 ml) under an inert atmosphere at ambient temperature. After stirring for 16 hours the solution was concentrated under reduced pressure and loaded directly onto a silica flash column eluting with methanol/dichloromethane (1:20) to give methyl 3-(4-fluorophenethyl)-6-[1-(4-fluorophenyl)-2-(1-methylimidazol-5-yl)ethoxy]pyridin-2-carboxylate as a colourless oil (1.56 g).

1. concentrationwas concentrated under reduced pressure
2. washeluting with methanol/dichloromethane (1:20)