11052-69-0 2,6-Epoxy-2H-naphthaceno(1,2-b)oxocin-14-carboxylic acid, 4-(dimethylamino)-3,4,5,6,9,16-hexahydro-3,5,8,10-tetrahydroxy-6,13-dimethyl-9,16-dioxo-, methyl ester, (2-alpha,3-beta,4-alpha,5-beta,6-alpha)- Nogalarene