Showing structure for methyl (1r,2r,4s)-4-{[(2s,4r,5r,6r)-4-(dimethylamino)-5-{[(2s,4r,5r,6r)-4-hydroxy-6-methyl-5-{[(2r,6s)-6-methyl-5-oxooxan-2-yl]oxy}oxan-2-yl]oxy}-6-methyloxan-2-yl]oxy}-2-ethyl-2,5,7,12-tetrahydroxy-6,11-dioxo-3,4-dihydro-1h-tetracene-1-carboxylate