[1,1'-biphenyl]-4-carboxylic acid (3aR,4R,5R,6aS)-hexahydro-4-[(1E,3R)-3-hydroxy-4-[3-(trifluoromethyl)phenoxy]-1-buten-1-yl]-2-hydroxy-2H-cyclopenta[b]furan-5-yl ester                                                                                                                                                              在
                                                                                                                                                                                 
甲醇   、                                                                                                  
potassium carbonate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
正己烷   、                                                                                         
乙酸乙酯                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 
(3aR,4R,5R,6aS)-hexahydro-4-[(1E,3R)-3-hydroxy-4-[3-(trifluoromethyl)phenoxy]-1-buten-1-yl]-2H-cyclopenta[b]furan-2,5-diol   、                                                                                             
(3aR,4R,5R,6aS)-hexahydro-4-[(1E,3R)-3-hydroxy-4-[3-(trifluoromethyl)phenoxy]-1-buten-1-yl]-2H-cyclopenta[b]furan-2,5-diol