title: Conformational flexibility of ring A in a series of substituted anthracyclines: 1H-n.m.r. and quantum mechanical studies.
mesh_terms: D000903:Antibiotics, Antineoplastic; D006860:Hydrogen Bonding; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D009279:Naphthacenes
chemical_list: D000903:Antibiotics, Antineoplastic; D009279:Naphthacenes