Showing structure for methyl (1r,4as,5r,6r,8s,8ar)-6,8-dihydroxy-1,4a,6-trimethyl-5-[(3e)-3-methyl-5-[(2s)-3-methyl-5-oxo-2h-furan-2-yl]pent-3-en-1-yl]-hexahydro-2h-naphthalene-1-carboxylate