Showing structure for (4ar,5r,6s)-4a-hydroxy-5-[(2s)-oxiran-2-yl]-6-{[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-3h,4h,5h,6h-pyrano[3,4-c]pyran-1-one