saptomycin E

10-[4-O-Acetyl-3-(dimethylamino)-3-C-methyl-2,3,6-trideoxy-α-L-lyxo-hexopyranosyl]-11-hydroxy-5-methyl-2-(2,3-dimethyloxiranyl)-4H-anthra[1,2-b]pyran-4,7,12-trione