反应详情

Isobutyryl chloride (0.160 mL, 1.53 mmol) was added dropwise to a solution of 8-(2-aminoethoxy)-2-ethoxymethyl-1-propyl-1H-imidazo[4,5-c]quinolin-4-amine (0.500 g, 1.46 mmol) in dichloromethane (10 mL), and the reaction was stirred for 16 hours. A precipitate formed, and dichloromethane (10 mL) was added. The precipitate was isolated by filtration, washed with dichloromethane (20 mL) and diethyl ether (75 mL), and dried for one hour under reduced pressure to provide 0.511 g of N-(2-{[4-amino-2-(ethoxymethyl)-1-propyl-1H-imidazo[4,5-c]quinolin-8-yl]oxy}ethyl)-2-methylpropanamide hydrochloride as an off-white solid, mp 240-242° C.

1. customA precipitate formed
2. customThe precipitate was isolated by filtration
3. washwashed with dichloromethane (20 mL) and diethyl ether (75 mL)
4. customdried for one hour under reduced pressure