(5R,6S,7S,8R)-8-Methyl-9-((2R,3R,4R,5S,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yl)-nonane-1,2,5,6,7-pentaol 、 alkaline earth salt of/the/ methylsulfuric acid 生成 Acetic acid (2R,3S,4R,5R,6R)-4,5-diacetoxy-6-acetoxymethyl-2-((2R,3S,4S,5R)-3,4,5,8,9-pentaacetoxy-2-methyl-nonyl)-tetrahydro-pyran-3-yl ester