C[C@H](CCCC(C)(C)O)[C@H]1CC[C@@]2(C)C3=CC[C@H]4[C@](C)(C(=O)O)[C@@H](O)CC[C@]4(C)C3=CC[C@]12C (3S,4S,5R,10S,13R,14R,17R)-3-hydroxy-17-[(2R)-6-hydroxy-6-methylheptan-2-yl]-4,10,13,14-tetramethyl-2,3,5,6,12,15,16,17-octahydro-1H-cyclopenta[a]phenanthrene-4-carboxylic acid