Synonyms: Dianemycin,19-de[(tetrahydro-5-methoxy-6-methyl-2H-pyran-2-yl)oxy]-18-[(tetrahydro-5-methoxy-6-methyl-2H-pyran-2-yl)oxy]-,[18R(2R,5R,6S)]-; 6-Nonenoic acid,8-[9-hydroxy-2,4',8,10'-tetramethyl-2'-[tetrahydro-6-hydroxy-6-(hydroxymethyl)-3,5-dimethyl-2H-pyran-2-yl]-8'-[(tetrahydro-5-methoxy-6-methyl-2H-pyran-2-yl)oxy][2,7'-bi-1,6-dioxaspiro[4.5]dec]-7-yl]-2,4,6-trimethyl-5-oxo-,[5R-[5a[S*[2'R*(2S*,3S*,5R*,6R*),4'S*,5'S*,7'R*,8'R*(2R*,5R*,6S*),10'R*]],7b(2S*,4R*,6E,8S*),8b,9a]]-; Isodianemycin