Nogalamycin is an unusual anthracycline produced by Streptomyces nogalater var. nogalater, reported by researchers at Upjohn in 1965. Nogalamycin contains two saccharides. The neutral monosaccharide attaches to the D ring, similar to the aminoglycoside moieties of the doxorubicin class, while the second, basic saccharide attaches to the phenolic group on the A ring in the ortho position to form a unique family of hexacyclic anthracyclines. Nogalamycin is potent antibacterial and antitumor agent that interacts with DNA by intercalation.