Showing structure for (2ar,3r,4r,5s,5ar,6as,6br,10ar,11r,12as,12bs,12cs)-2a,4,5a,10a,11-pentahydroxy-3,3',4',6b,12c-pentamethyl-2,3,4,6,6a,10,11,12,12a,12b-decahydro-1h-spiro[cyclohexa[j]aceanthrylene-5,2'-furan]-5',7-dione