alkaline earth salt of/the/ methylsulfuric acid 在
copper dichloride 作用下,
以
乙醇 为溶剂,
反应 3.0h,
以200 mg的产率得到Methanesulfonic acid (1R,3S,3aS,4R,8R,8aS)-3-(dimethyl-phenyl-silanyl)-8a-hydroxy-3a,4-dimethyl-7-oxo-1,2,3,3a,4,7,8,8a-octahydro-4,8-methano-azulen-1-yl ester