title: Isolation of new anthracycline antibiotics, A447 C and D.
mesh_terms: D018943:Anthracyclines; D000900:Anti-Bacterial Agents / Q000302:isolation & purification*; D000903:Antibiotics, Antineoplastic; D009682:Magnetic Resonance Spectroscopy; D009279:Naphthacenes / Q000302:isolation & purification; D013302:Streptomyces / Q000254:growth & development*; D013329:Structure-Activity Relationship
chemical_list: D018943:Anthracyclines; D000900:Anti-Bacterial Agents; D000903:Antibiotics, Antineoplastic; D009279:Naphthacenes; C052005:antibiotic A447 D; C053964:cosmomycin C; C052004:antibiotic A447 C; C052002:cosmomycin D