Showing structure for (5z,6r,8r)-5-ethylidene-8-methoxy-6-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-3h,4h,6h,8h-pyrano[3,4-c]pyran-1-one