C=C(C)[C@H](CC)CC[C@@H](C)[C@H]1CCC2C3C[C@@H](O)C4=C[C@@H](O)CC[C@]4(C)C3CC[C@@]21C (3S,6R,10R,13R,17R)-17-[(2R,5R)-5-ethyl-6-methylhept-6-en-2-yl]-10,13-dimethyl-2,3,6,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthrene-3,6-diol