(2S,3aS,4aR,6S,8S,8aS,9R,10R)-8,9-bis(acetyloxy)-2,6-dihydroxy-3a-(2-hydroxypropan-2-yl)-1,8a-dimethyl-5-methylidene-2,3,3a,4,4a,5,6,7,8,8a,9,10-dodecahydrobenzo[f]azulen-10-yl benzoate