一氧化碳 、
(1R,2S,3R,4S)-3-[5-(cyclopenten-1-yl)-4,4-dimethylpent-1-ynoxy]-2-(2,2-dimethylpropoxy)-1,7,7-trimethylbicyclo[2.2.1]heptane 在
dicobalt octacarbonyl 作用下,
生成 (3aR,8aR)-5-[(1S,2R,3S,4R)-3-(2,2-Dimethyl-propoxy)-4,7,7-trimethyl-bicyclo[2.2.1]hept-2-yloxy]-7,7-dimethyl-1,2,3,3a,7,8-hexahydro-6H-cyclopenta[c]pentalen-4-one 、 (3aS,8aS)-5-[(1S,2R,3S,4R)-3-(2,2-Dimethyl-propoxy)-4,7,7-trimethyl-bicyclo[2.2.1]hept-2-yloxy]-7,7-dimethyl-1,2,3,3a,7,8-hexahydro-6H-cyclopenta[c]pentalen-4-one