4-(4-amino-2-(2-methoxyethyl)-1H-imidazo[4,5-c]quinolin-1-yl)butaneamine 、
2-(3-甲酰基苯氧基)乙酸叔丁酯 以to afford the title compound, 217.0 mg (70%) as a pale yellow gum的产率得到tert-butyl 2-[3-({4-[4-amino-2-(2-methoxyethyl)-1H-imidazo[4,5-c]quinolin-1-yl]butylamino}methyl)phenoxy]acetate