[H]C(C)(CC[C@@]([H])(C(O)=O)[C@@]1([H])[C@]([H])(O)C[C@@]2(C)C3=C(CC[C@]12C)[C@@]1(C)CC[C@@]([H])(OC(C)=O)C(C)(C)[C@]1([H])CC3)C(C)=C