mono(1,1'-((butane-1,4-diylbis(4,1-phenylene))bis(methylene))bis(2-((hydroxyimino)methyl)pyridin-1-ium)) monobromide 、 alkaline earth salt of/the/ methylsulfuric acid 反应 1.0h,
以55%的产率得到mono(9,9'-(butane-1,4-diyl)bis(pyrido[1,2-b]isoquinolin-5-ium)) monobromide