(Z,3S,6R)-6-[(1R,3aS,4E,7aR)-4-[(2E)-2-[(3S,5R)-3,5-bis[[tert-butyl(dimethyl)silyl]oxy]-2-methylidenecyclohexylidene]ethylidene]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-1-yl]-2,3-dimethylhept-4-en-2-ol 在
四丁基氟化铵 作用下,
以
四氢呋喃 为溶剂,
以93%的产率得到(1R,3S,5E)-5-[(2E)-2-[(1R,3aS,7aR)-1-[(Z,2R,5S)-6-hydroxy-5,6-dimethylhept-3-en-2-yl]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexane-1,3-diol