[(1S,2R)-2-phenylcyclohexyl] 2-dimethoxyphosphorylacetate   、                                                                                      
(1R,5S,6S,7R)-3-oxo-6-(tert-butyldiphenylsilyloxymethyl)-7-hydroxybicyclo<3.3.0>octane                                                                                                                                                              在
                                                                                                                                                                                 
potassium tert-butylate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃   、                                                                                         
甲苯                                                                                  为溶剂,
                                                                                                                                                    反应 18.0h,
                                                                                                                生成                                                 [(3aR,4R,5S,6aR)-4-(tert-Butyl-diphenyl-silanyloxymethyl)-5-hydroxy-hexahydro-pentalen-(2E)-ylidene]-acetic acid (1S,2R)-2-phenyl-cyclohexyl ester