138370-82-8 4H-Anthra(1,2-b)pyran-4,7,12-trione, 10-(4-(dimethylamino)tetrahydro-5-hydroxy-4,6-dimethyl-2H-pyran-2-yl)-11-hydroxy-5-methyl-2-(2-methyl-3-(1-propenyl)oxiranyl)- Deacetylsaptomycin D