tert-Butyl-dimethyl-[(1R,4S,4aS,5R,8S,8aR)-1,2,3,4-tetrachloro-8-(2-ethoxy-ethoxy)-9,9-dimethoxy-1,4,4a,5,8,8a-hexahydro-1,4-methano-naphthalen-5-yloxy]-silane 在
4-甲基苯磺酸吡啶 作用下,
以
甲醇 为溶剂,
以48%的产率得到(1S,4R,4aR,5S,8R,8aS)-8-(tert-Butyl-dimethyl-silanyloxy)-1,2,3,4-tetrachloro-9,9-dimethoxy-1,4,4a,5,8,8a-hexahydro-1,4-methano-naphthalen-5-ol