CC(=O)OC[C@]12CC[C@H]3[C@@H](CCC4=CC(=O)C=C[C@@]43C)[C@@H]1CC[C@@H]2[C@H](C)[C@@H](CCC(C)C)OC(C)=O [(8R,9S,10R,13R,14S,17R)-17-[(2S,3R)-3-acetyloxy-6-methylheptan-2-yl]-10-methyl-3-oxo-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthren-13-yl]methyl acetate