(Z,Z,Z)-(5S,6S,7S,8S,13S,14S,15S)-8,14-bis(4-methoxybenzyloxy)-5,7,13,15-tetramethyl-20-(tetrahydropyran-2-yloxy)eicosa-1,3,11,16-tetraen-6-ol                                                                                                                                                              在
                                                                                                                                                                                 
aluminum oxide                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                    反应 6.5h,
                                                                                                                生成                                                 Carbamic acid (6Z,11Z)-(1S,2S,3S,8S,9S,10S)-3,9-bis-(4-methoxy-benzyloxy)-2,8,10-trimethyl-1-((Z)-(S)-1-methyl-penta-2,4-dienyl)-15-(tetrahydro-pyran-2-yloxy)-pentadeca-6,11-dienyl ester