Showing structure for 5-(2-carboxy-1-hydroxyethyl)-2-[furan-3-yl({[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy})methyl]-6-(2-hydroxypropan-2-yl)-2,5,8a-trimethyl-8-oxo-tetrahydro-3h-spiro[naphthalene-1,2'-oxirane]-3'-carboxylic acid