(3aR,4R,5S,6S,7aR)-4-(1-Ethoxy-ethoxy)-5-isopropenyl-6-methyl-6-vinyl-hexahydro-benzofuran-2-one                                                                                                                                                              在
                                                                                                                                                                                 
lithium diisopropyl amide                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
六甲基磷酰三胺                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 (3aR,4R,5S,6S,7aR)-4-(1-Ethoxy-ethoxy)-5-isopropenyl-3,6-dimethyl-3-phenylselanyl-6-vinyl-hexahydro-benzofuran-2-one