(1R,3aR,7aR)-1-[(R)-1-((S)-6,6-Dimethyl-tetrahydro-pyran-3-yl)-ethyl]-7a-methyl-octahydro-inden-4-one 在
正丁基锂 、
四丁基氟化铵 作用下,
以
四氢呋喃 为溶剂,
生成 (1R,3S,5Z)-5-[(2E)-2-[(1R,3aS,7aR)-1-[(1R)-1-[(3S)-6,6-dimethyloxan-3-yl]ethyl]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexane-1,3-diol