反应详情

A modification of the method described in Part A of Example 1 was followed using 3-(7-bromo-2-propyl-1H-imidazo[4,5-c]quinolin-1-yl)propan-1-ol (4.60 g, 13.2 mmol), triphenylphosphine (4.17 g, 15.9 mmol), diisopropyl azodicarboxylate (3.13 mL, 15.9 mmol), and N-hydroxyphthalimide (2.59 g, 15.9 mmol). After the solvent was removed under reduced pressure, the residue was dissolved in chloroform (200 mL), washed sequentially with saturated aqueous sodium bicarbonate (2×30 mL) and brine (20 mL), dried over magnesium sulfate, filtered, and concentrated under reduced pressure. The crude product was triturated twice with ethyl acetate to provide 4.68 g of 2-[3-(7-bromo-2-propyl-1H-imidazo[4,5-c]quinolin-1-yl)propoxy]-1H-isoindole-1,3(2H)-dione.

1. customAfter the solvent was removed under reduced pressure
2. dissolutionthe residue was dissolved in chloroform (200 mL)
3. washwashed sequentially with saturated aqueous sodium bicarbonate (2×30 mL) and brine (20 mL)
4. dry with materialdried over magnesium sulfate
5. filtrationfiltered
6. concentrationconcentrated under reduced pressure
7. customThe crude product was triturated twice with ethyl acetate