1-(4-aminobutyl)-1H-imidazo[4,5-c]quinolin-4-amine 、
2,6-二甲氧基烟酰氯化物 以to provide N3-[4-(4-amino-1H-imidazo[4,5-c]quinolin-1-yl)butyl]-2,6-dimethoxynicotinamide as an off white powder, m.p. 175.0-177.0° C的产率得到N3-[4-(4-Amino-1H-imidazo[4,5-c]quinolin-1-yl)butyl]-2,6-dimethoxynicotinamide