(E)-4-(((3aR,4R,5R,7S,8S,9R,9aS,12R)-5-(2-((2-(diethylamino)ethyl)thio)acetoxy)-3,8-dihydroxy-4,7,9,12-tetramethyl-7-vinyldecahydro-4,9a-propanocyclopenta[8]annulen-2-yl)oxy)-4-oxobut-2-enoic acid
(E)-4-(((3aR,4R,5R,7S,8S,9R,9aS,12R)-5-(2-((2-(diethylamino)ethyl)thio)acetoxy)-3,8-dihydroxy-4,7,9,12-tetramethyl-7-vinyldecahydro-4,9a-propanocyclopenta[8]annulen-2-yl)oxy)-4-oxobut-2-enoic acid