1-(4-aminobutyl)-1H-imidazo[4,5-c]quinolin-4-amine 、
1-萘甲酰氯 以to provide N1-[4-(4-amino-1H-imidazo[4,5-c]quinolin-1-yl)butyl]-1-naphthamide as an off white powder, m.p. 174.5° C. (decomposition)的产率得到N1-[4-(4-Amino-1H-imidazo[4,5-c]quinolin-1-yl)butyl]-1-naphthamide