(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