(1S,3aR,7aS)-1-((tert-Butyldimethylsilyl)oxy)-7a-methyl-4-methylenehexahydro-1H-inden-5(6H)-one   、                                                                                      
1-[4-[tert-butyl(dimethyl)silyl]oxyphenyl]-N-methylmethanimine oxide                                                                                                                                                                                              以
                                                                                         
甲苯                                                                                  为溶剂,
                                                                                                                                                    反应 15.0h,
                                                                                                                以54%的产率得到(1S,3aR,4S,7aS)-1-[tert-butyl(dimethyl)silyl]oxy-3'-[4-[tert-butyl(dimethyl)silyl]oxyphenyl]-2',7a-dimethylspiro[1,2,3,3a,6,7-hexahydroindene-4,5'-1,2-oxazolidine]-5-one