(1S,2s)-反式-1,2-环己二醇   、                                                                                      
(3aS,5S,6aR)-5-(2-Cyclohexyl-2-oxo-ethyl)-hexahydro-pentalen-2-one                                                                                                                                                              在
                                                                                                                                                                                 
三氟化硼乙醚                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 
((1S,5S,6S)-3-Cyclohexyl-bicyclo[3.2.1]oct-3-en-6-yl)-acetic acid (1S,2S)-2-hydroxy-cyclohexyl ester   、                                                                                             ((1R,5R,6R)-3-Cyclohexyl-bicyclo[3.2.1]oct-3-en-6-yl)-acetic acid (1S,2S)-2-hydroxy-cyclohexyl ester