C[C@H](C/C=C/C(C)(C)O)[C@H]1CC[C@@]2(C)[C@@H]3CC[C@@]4(C)[C@@H](CCC(=O)[C@@H]4C)[C@]3(C)CC[C@]12C (4R,5S,8R,9S,10S,13R,14S,17R)-17-[(E,2R)-6-hydroxy-6-methylhept-4-en-2-yl]-4,5,9,13,14-pentamethyl-1,2,4,6,7,8,10,11,12,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one