(3S,3aS,8bS)-3-Isopropenyl-3a,6,8b-trimethyl-2,3,3a,8b-tetrahydro-1H-benzo[b]cyclopenta[d]furan

Acetic acid (3R,3aR,8bS)-3a,6,8b-trimethyl-2,3,3a,8b-tetrahydro-1H-benzo[b]cyclopenta[d]furan-3-yl ester