Showing structure for (4as,5r,6s)-5-ethenyl-6-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-({[(2r,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}methyl)oxan-2-yl]oxy}-3h,4h,4ah,5h,6h-pyrano[3,4-c]pyran-1-one