C[C@H](C/C=C/C(C)(C)OO)[C@H]1CC[C@H]2[C@@H]3C[C@@H](O)[C@@]4(O)C[C@@H](O)CC[C@]4(C)[C@H]3CC[C@]12C (3S,5R,6R,8S,9S,10R,13R,14S,17R)-17-[(E,2R)-6-hydroperoxy-6-methylhept-4-en-2-yl]-10,13-dimethyl-1,2,3,4,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthrene-3,5,6-triol