2-[[3-[2-[2-[2-[2-[(2-Hydroxyethylamino)methyl]thiophen-3-yl]oxyethoxy]ethoxy]ethoxy]thiophen-2-yl]methylamino]ethanol 、 alkaline earth salt of/the/ methylsulfuric acid 生成 2-[Acetyl-[[3-[2-[2-[2-[2-[[acetyl(2-acetyloxyethyl)amino]methyl]thiophen-3-yl]oxyethoxy]ethoxy]ethoxy]thiophen-2-yl]methyl]amino]ethyl acetate