2, {6-Epoxy-2H-naphthaceno[1,2-b]oxocin-9,16-dione,} {11-[(6-deoxy-3-C-methyl-2,3,} 4-tri-O-methyl-.alpha.-L-mannopyranosyl)oxy\]-4-(dimethylamino)-3, 4,5,6,11,12,13,14-octahydro-3,5,8,10,13-pentahydroxy-6, 13-dimethyl- AIDS-128336 AIDS128336 NSC265450 Nogalomycin C Nogamycin