(4aS,6R,7S,8R,8aS)-2-Propyl-hexahydro-pyrano[3,2-d][1,3]dioxine-6,7,8-triol

3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-3',6'-diyl bis(4-(((4aR,6R,7R,8R,8aS)-7,8-dihydroxy-2-propylhexahydropyrano[3,2-d][1,3]dioxin-6-yl)amino)benzoate)