Dianemycin, 10-demethyl-19-de((tetrahydro-5-methoxy-6-methyl-2H-pyran-2-yl)oxy)-12-methyl-11-O-(tetrahydro-5-methoxy-6-methyl-2H-pyran-2-yl)-27-((tetrahydro-5-methoxy-6-methyl-2H-pyran-2-yl)oxy)-, (11(2R,5S,6R),12R,27S(2R,5S,6R))-