(+)-(tert-butyl)-2-((E)-((3aS,4R,5R,6aS)-5-hydroxy-4-((3S,4S,E)-3-hydroxy-4-methyloct-1-en-6-ynyl)hexahydropentalen-2(1H)-ylidene)ethoxy)acetate                                                                                                                                                              在
                                                                                                                                                                                 
sodium hydroxide                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 4.5h,
                                                                                                                以90%的产率得到(+)-2-((E)-((3aS,4R,5R,6aS)-5-hydroxy-4-((3S,4S,E)-3-hydroxy-4-methyloct-1-en-6-ynyl)hexahydropentalen-2(1H)-ylidene)ethoxy)acetic acid