(4S,5R)-5-[(2S)-5-[tert-butyl(dimethyl)silyl]oxy-2-hydroxy-2-methyloct-7-enyl]-4-ethenyloxolan-2-one                                                                                                                                                              在
                                                                                                                                         
RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh)                                                                                                                                                                                                                               对苯醌                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲苯                                                                                  为溶剂,
                                                                                                                                                    反应 0.5h,
                                                                                                                以40%的产率得到(3aS,4Z,7S,10S,11aR)-7-[tert-butyl(dimethyl)silyl]oxy-10-hydroxy-10-methyl-3,3a,6,7,8,9,11,11a-octahydrocyclodeca[b]furan-2-one