CC[C@@]1(C)CCC[C@]2(C)[C@H]3C[C@H](O)[C@]4(C)C5=C(CC[C@H]4[C@]3(C)CC[C@@H]12)C(=O)C[C@H]5O (1R,5aS,5bR,7aS,8S,11aS,11bR,13S,13aS)-8-ethyl-1,13-dihydroxy-5b,8,11a,13a-tetramethyl-1,2,4,5,5a,6,7,7a,9,10,11,11b,12,13-tetradecahydrocyclopenta[a]chrysen-3-one