ethyl (Z)-5-[(1S,2S,3aS,7aR)-1-formyl-2-(oxan-2-yloxy)-2,3,3a,6,7,7a-hexahydro-1H-inden-5-yl]pent-4-enoate 、
Dimethyl (3,3-dimethyl-2-oxooct-5-yn-1-yl)phosphonate 生成 ethyl (Z)-5-[(1R,2S,3aS,7aR)-1-[(E)-4,4-dimethyl-3-oxonon-1-en-6-ynyl]-2-(oxan-2-yloxy)-2,3,3a,6,7,7a-hexahydro-1H-inden-5-yl]pent-4-enoate