(3aS,4aR,8S,8aS,10aR)-8-Hydroxy-1-isopropylidene-3a,8a-dimethyl-5-methylene-dodecahydro-benzo[f]azulen-2-one

(3aS,4aR,8aS,10aR)-1-Isopropylidene-3a,8a-dimethyl-5-methylene-decahydro-benzo[f]azulene-2,8-dione

Acetic acid (3aS,4aR,8S,8aS,10aR)-1-isopropylidene-3a,5,8a-trimethyl-2-oxo-1,2,3,3a,4,4a,7,8,8a,9,10,10a-dodecahydro-benzo[f]azulen-8-yl ester