methyl 8,8-dimethoxy-1-ethyl-5-<<5-methoxy-1-(phenylmethoxy)-2-naphthyl>methyl>-3-oxo-2-oxabicyclo<2.2.2>oct-5-ene-6-carboxylate 在
platinum on activated charcoal 、
氢气 作用下,
以
乙醇 为溶剂,
反应 336.0h,
以84%的产率得到methyl 8,8-dimethoxy-1-ethyl-5-<(1-hydroxy-5-methoxy-2-naphthyl)methyl>-3-oxo-2-oxabicyclo<2.2.2>oct-5-ene-6-carboxylate