反应详情

3-Hydroxytetrahydrofuran (0.375 mL, 4.64 mmol) was added to a suspension of 1-(2-methylpropyl)-2-propyl-1H-imidazo[4,5-c]quinolin-7-ol (1.0 g, 3.5 mmol) and triphenylphosphine (1.5 g, 5.7 mmol) in THF. Diisopropyl azodicarboxylate (1.1 mL, 5.6 mmol) was added dropwise over a period of three minutes, and the reaction was stirred for 48 hours. The solvent was removed under reduced pressure, the residue was purified by column chromatography on silica gel (eluting with 98:2 dichloromethane:methanol) to provide 1.1 g of 1-(2-methylpropyl)-2-propyl-7-(tetrahydrofuran-3-yloxy)-1H-imidazo[4,5-c]quinoline as an off-white, crystalline solid.

1. customThe solvent was removed under reduced pressure
2. customthe residue was purified by column chromatography on silica gel (eluting with 98:2 dichloromethane:methanol)