(3aR,4R,5R,7S,8S,9R,9aS,12R)-4,7,9,12-tetramethyl-3-oxo-7-vinyldecahydro-4,9a-propanocyclopenta[8]annulene-5,8-diyl diacetate
(3aR,4R,5R,7S,8S,9R,9aS,12R)-4,7,9,12-tetramethyl-3-oxo-7-vinyldecahydro-4,9a-propanocyclopenta[8]annulene-5,8-diyl diacetate