巴豆酸甲酯   、                                                                                      
tert-butyl-dimethyl-[(1R)-3-(1-trimethylsilyloxyethenyl)cyclohex-2-en-1-yl]oxysilane                                                                                                                                                              在
                                                                                                                                                                                 
甲基锂   、                                                                                                  
sodium methylate                                                                                                                                  作用下,
                                                                                                                                                                                                                            生成                                                 methyl (1R,2S,4aS,8R,8aS)-8-[tert-butyl(dimethyl)silyl]oxy-2-methyl-4-oxo-2,3,4a,5,6,7,8,8a-octahydro-1H-naphthalene-1-carboxylate