Showing structure for methyl (1r,2r,4s)-4-{[5-({5-[(4,5-dihydroxy-6-methyloxan-2-yl)oxy]-4-hydroxy-6-methyloxan-2-yl}oxy)-4-(dimethylamino)-6-methyloxan-2-yl]oxy}-2-ethyl-2,5,7,10-tetrahydroxy-6,11-dioxo-3,4-dihydro-1h-tetracene-1-carboxylate