反应详情

To a solution of N-[1-butyl-4-(3-methoxyphenyl)-1,2-dihydro-2-oxo-1,8-naphthyridin-3-yl]-N′-[2-tert-butyl-5-(bromomethyl)phenyl]urea (330 mg, 0.56 mmol) in THF (tetrahydrofuran, 5 ml) is added pyrrolidine (362 mg, 5.09 mmol), and the mixture is stirred at room temperature for 3 hours. The mixture is poured into water, and the mixture is extracted with ethyl acetate. The extract is washed with water and a saturated brine, and dried over anhydrous magnesium sulfate. The solvent is evaporated under reduced pressure, and the resulting residue is purified by silica gel column chromatography (5-10% methanol/chloroform) to give the title compound (234 mg, 0.42 mmol) as colorless oil.

1. extractionthe mixture is extracted with ethyl acetate
2. washThe extract is washed with water
3. dry with materiala saturated brine, and dried over anhydrous magnesium sulfate
4. customThe solvent is evaporated under reduced pressure
5. customthe resulting residue is purified by silica gel column chromatography (5-10% methanol/chloroform)