Showing structure for (3ar,4s,9as,9br)-6,9-dimethyl-3-methylidene-4-{[(2r,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-3ah,4h,5h,9ah,9bh-azuleno[4,5-b]furan-2,7-dione