C=C(C(=O)C[C@@H](C)[C@H]1CC[C@]2(O)[C@@H]3CC[C@H]4[C@H](C)[C@@H](O)CC[C@]4(C)[C@H]3CC[C@]12C)C(C)C (6R)-6-[(3S,4S,5S,8R,9S,10S,13R,14S,17R)-3,14-dihydroxy-4,10,13-trimethyl-1,2,3,4,5,6,7,8,9,11,12,15,16,17-tetradecahydrocyclopenta[a]phenanthren-17-yl]-2-methyl-3-methylideneheptan-4-one