Showing structure for (1r,4ar,5r,7s,8ar)-5-{[(1r,4ar,8as)-8a-(5,7-dihydroxy-4-oxochromen-2-yl)-6-methoxy-2-methyl-5,8-dioxo-4,4a-dihydro-1h-naphthalen-1-yl]methyl}-7-hydroxy-1,4a-dimethyl-6-methylidene-hexahydro-2h-naphthalene-1-carboxylic acid