Bicyclo[3.3.1]non-3-ene-2,9-dione,3-(3,4-dihydroxybenzoyl)-4-hydroxy-8,8-dimethyl-1,7-bis(3-methyl-2-buten-1-yl)-5-[(2R)-5-methyl-2-(1-methylethenyl)-4-hexen-1-yl]-,(1S,5S,7S)-