C=C(C[C@@H](OC(C)=O)[C@@H](C)[C@H]1CC[C@@H](C2=C[C@H](O)[C@H]3C[C@@H](O)CC[C@]3(C)C2=O)[C@]1(C)CCO)C(C)C [(2S,3R)-2-[(1R,2R,3R)-3-[(4S,4aS,6S,8aS)-4,6-dihydroxy-8a-methyl-1-oxo-4,4a,5,6,7,8-hexahydronaphthalen-2-yl]-2-(2-hydroxyethyl)-2-methylcyclopentyl]-6-methyl-5-methylideneheptan-3-yl] acetate