1-(4-aminobutyl)-2-methyl-1H-imidazo[4,5-c]quinolin-4-amine 、
丁酰氯 以to provide 0.65 g of N-[4-(4-amino-2-methyl-1H-imidazo[4,5-c]quinolin-1-yl)butyl]butanamide as an off white solid, m.p. 169.4-170.5° C.的产率得到N-[4-(4-amino-2-methyl-1H-imidazo[4,5-c]quinolin-1-yl)butyl]butanamide