N4-[2,2-dimethyl-3-(2-methyl-[1,3]dioxolan-2-yl)propyl]quinoline-3,4-diamine 、
原丁酸三甲酯 在
silica gel 作用下,
以to provide 1-[2,2-dimethyl-3-(2-methyl-[1,3]dioxolan-2-yl)propyl]-2-propyl-1H-imidazo[4,5-c]quinoline (3.10 g) as a solid after chromatography on silica gel (的产率得到1-[2,2-dimethyl-3-(2-methyl-[1,3]dioxolan-2-yl)propyl]-2-propyl-1H-imidazo[4,5-c]quinoline