Showing structure for 2-({4-ethenyl-8-oxo-3h,4h,4ah,5h,6h-pyrano[3,4-c]pyran-3-yl}oxy)-4,5-dihydroxy-6-(hydroxymethyl)oxan-3-yl 3,3'-dihydroxy-5-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-[1,1'-biphenyl]-2-carboxylate