Octanoic Acid, 6-(Acetyloxy)-2,3,3a,4,5,6,6a,7,8,9b-decahydro-3,3a-dihydroxy-3,6,9-trimethyl-8-((2-methyl-1-oxo-2-butenyl)oxy)-2-oxo-4-(1-oxobutoxy)azuleno(4,5-b)furan-7-yl Ester, (3S-(3alpha,3abeta,4alpha,6beta,6abeta,7beta,8alpha(Z),9balpha))-