2,2-Dimethyl-propionic acid (1S,3aS,7aS)-4-[(Z)-2-((S)-5-acetoxy-2-ethyl-cyclohex-1-enyl)-vinyl]-7a-methyl-2,3,3a,6,7,7a-hexahydro-1H-inden-1-yl ester 以
乙二醇二甲醚 为溶剂,
反应 3.0h,
以99%的产率得到2,2-Dimethyl-propionic acid (1S,3aS,7aS)-4-[2-[(S)-5-acetoxy-2-eth-(E)-ylidene-cyclohex-(Z)-ylidene]-eth-(E)-ylidene]-7a-methyl-octahydro-inden-1-yl ester