C=C1CC[C@@H](C(C)C)C[C@H]2[C@H](C)[C@@H](OC)[C@@H](O)[C@@H]12 (1S,2R,3S,3aS,5R,8aR)-2-methoxy-3-methyl-8-methylidene-5-propan-2-yl-2,3,3a,4,5,6,7,8a-octahydro-1H-azulen-1-ol