(Z)-(3aS,7R,9aR,10aS)-7-((S)-1,5-Dimethyl-hex-4-enyl)-1,9a-dimethyl-3a,4,7,8,9,9a,10,10a-octahydro-dicyclopenta[a,d]cyclooctene-3,5-dione 在
potassium tert-butylate 作用下,
以
叔丁醇 为溶剂,
反应 0.5h,
以150 mg的产率得到(3aS,6aR,7aR,10R,10aR)-10-((S)-1,5-Dimethyl-hex-4-enyl)-6,7a-dimethyl-6a,7,7a,8,9,10-hexahydro-dicyclopenta[a,h]pentalene-2,4-dione