2-butyl-1-methyl-8-(2-piperidinylethoxy)-1H-imidazo[4,5-c]quinolin-4-amine 、
环戊基甲酰氯 在
crude product 、 silica gel 作用下,
以to provide 2-butyl-8-{2-[1-(cyclopentylcarbonyl)piperidin-4-yl]ethoxy}-1-methyl-1H-imidazo[4,5-c]quinolin-4-amine as a white solid, mp 147.2-150.1° C.的产率得到2-butyl-8-{2-[1-(cyclopentylcarbonyl)piperidin-4-yl]ethoxy}-1-methyl-1H-imidazo[4,5-c]quinolin-4-amine