(1R,5S,6R,7R)-7-(Tetrahydropyran-2-yloxy)-6-[(E)-3R-3-(tetrahydropyran-2-yloxy)-4,4-trimethyleneoct-1-en-6-ynyl]bicyclo[3.3.0]octan-3-one 、
(4-carboxybutyl)triphenylphosphonium bromide 生成 (5Z)-5-[(3aS,4R,5R,6aR)-4-[(E,3R)-3-(1-but-2-ynylcyclobutyl)-3-(oxan-2-yloxy)prop-1-enyl]-5-(oxan-2-yloxy)-3,3a,4,5,6,6a-hexahydro-1H-pentalen-2-ylidene]pentanoic acid