(1R,3R,5S,7R,8R,9R,10R)-3-ethyl-8,9,10-trimethyl-5-((S)-1-methyl-2-(phenylmethoxy)ethyl)-1-trimethylsilyloxy-2,4,6-trioxatricyclo[3.3.1.1(3,7)]decane                                                                                                                                                              在
                                                                                                                                                                                 palladium 10% on activated carbon   、                                                                                                  
氢气                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙醇                                                                                  为溶剂,
                                                                                                                                                    反应 0.25h,
                                                                                                                以86%的产率得到(S)-2-[(1R,3R,5S,7R,8R,9R,10R)-3-ethyl-8,9,10-trimethyl-5-[(S)-1-methyl-2-(phenylmethoxy)ethyl]-1-trimethylsilyloxy-2,4,6-trioxatricyclo[3.3.1.1(3,7)]dec-5-yl]propanol