(3R,4S,5S,6R,7R,9R,11S,12R,13S,14R)-4-[(4,5-dihydroxy-4,6-dimethyl-3,4,5,6-tetrahydro-2H-pyran-2-yl)oxy]-6-{[4-(dimethylamino)-3-hydroxy-6-methyl-3,4,5,6-tetrahydro-2H-pyran-2-yl]oxy}-10-[(E)-(2,5-dioxahex-1-yloxy)azanylidene]-14-ethyl-7,12,13-trihydroxy-3,5,7,9,11,13-hexamethyloxacyclotetradecan-2-one