Showing structure for (2r)-2-({[(5s,6s)-5-{[(2s,3r,4s,5s,6r)-3,5-dihydroxy-6-methyl-4-{[(2s,3r,4s,5r)-3,4,5-trihydroxyoxan-2-yl]oxy}oxan-2-yl]oxy}-1,6,9,14-tetrahydroxy-11-methoxy-3-methyl-8,13-dioxo-5h,6h-naphtho[1,2-b]anthracen-2-yl](hydroxy)methylidene}amino)propanoic acid