CC1=C(c2cc(C)c3cc(C(C)C)ccc(C)c2-3)C(=O)[C@]23O[C@]2(C)[C@H](c2cc(C)c4cc(C(C)C)ccc(C)c2-4)C=C(C(C)C)C=C13	anthogorgiene O