CC[C@@]1(C)CCC[C@]2(C)[C@H]3C[C@H](OC(C)=O)[C@]4(C)C=C(C(C)=O)[C@@H](O)C[C@H]4[C@]3(C)CC[C@@H]12 [(1S,4aS,4bR,6S,6aR,9S,10aS,10bR,12aS)-8-acetyl-1-ethyl-9-hydroxy-1,4a,6a,10b-tetramethyl-2,3,4,4b,5,6,9,10,10a,11,12,12a-dodecahydrochrysen-6-yl] acetate