(7S,8S,11R)-7-Hydroxy-8-isopropyl-11-methyl-7-prop-2-ynyl-spiro[5.5]undec-1-en-3-one 在
偶氮二异丁腈 、
三正丁基氢锡 、
4-甲基苯磺酸吡啶 作用下,
生成 (6aS,7S,10R)-6a-Hydroxy-7-isopropyl-10-methyl-5-methylene-decahydro-benzo[c]inden-3-one 、 (6aR,7S,10R)-6a-Hydroxy-7-isopropyl-5,10-dimethyl-1,2,4a,6a,7,8,9,10-octahydro-4H-benzo[c]inden-3-one