CC1(C)CCC(=O)[C@@]2(C)[C@@H]3CC[C@](C)([C@H](O)CO)CC3=CC[C@H]12 (4aR,4bR,7S,10aR)-7-[(1S)-1,2-dihydroxyethyl]-1,1,4a,7-tetramethyl-2,3,4b,5,6,8,10,10a-octahydrophenanthren-4-one