(1R,3aR,7aR)-1-[(1S)-1-[(3S)-6,6-dimethyloxan-3-yl]ethyl]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-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)-5-[2-[(1R,3aS,7aR)-1-[(S)-1-((S)-6,6-Dimethyl-tetrahydro-pyran-3-yl)-ethyl]-7a-methyl-octahydro-inden-(4E)-ylidene]-eth-(Z)-ylidene]-4-methylene-cyclohexane-1,3-diol