Showing structure for 9-[furan-3-yl({[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy})methyl]-1-hydroxy-5,5,7a,9,11b-pentamethyl-3,7-dioxo-hexahydro-1h-spiro[naphtho[2,1-c]oxepine-8,2'-oxirane]-3'-carboxylic acid