反应详情

A solution of [1-(2-fluoro-2-methylpropyl)-1H-imidazo[4,5-c][1,5]naphthyridin-2-yl]methanol (1.53 g, 5.58 mmol) dissolved in 50 mL of CH2Cl2 was treated with triethylamine (1.55 mL, 11.2 mmol), acetic anhydride (663 μL; 6.70 mmol), and 10 mg of 4-(dimethylamino)pyridine (DMAP). After stirring for 2 hours, the reaction mixture was treated with saturated NaHCO3 solution and the layers were separated. The organic portion was washed successively with 3.5% NaH2PO4 solution, H2O and brine. The organic portion was dried over Na2SO4, filtered and concentrated under reduced pressure. Chromatography (SiO2, 40-60% acetone/hexanes) gave 1.59 g of [1-(2-fluoro-2-methylpropyl)-1H-imidazo[4,5-c][1,5]naphthyridin-2-yl]methyl acetate as an off-white powder.

1. customthe layers were separated
2. washThe organic portion was washed successively with 3.5% NaH2PO4 solution, H2O and brine
3. dry with materialThe organic portion was dried over Na2SO4
4. filtrationfiltered
5. concentrationconcentrated under reduced pressure