(2E,4E)-Hexa-2,4-dienoic acid (E)-(3aS,4S,7S,11aR)-2,2-dimethyl-6-oxo-4-propyl-3a,6,7,8,9,11a-hexahydro-4H-1,3,5-trioxa-cyclopentacyclodecen-7-yl ester                                                                                                                                                              在
                                                                                                                                                                                 
盐酸                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                                                        以56%的产率得到(2E,4E)-Hexa-2,4-dienoic acid (E)-(3S,8R,9R,10S)-8,9-dihydroxy-2-oxo-10-propyl-3,4,5,8,9,10-hexahydro-2H-oxecin-3-yl ester