137714-91-1 4H-Anthra(1,2-b)pyran-4,7,12-trione, 10-(4-O-acetyl-2,3,6-trideoxy-3-(dimethylamino)-3-C-methyl-alpha-L-lyxo-hexopyranosyl)-11-hydroxy-5-methyl-2-(2-methyl-3-(1-propenyl)oxiranyl)-, (2-alpha,3-beta(Z))- Saptomycin D