Doxorubicin and 4′-epidoxorubicin form chelate complexes with Cu(II), the structures of which are dependent on the drug-to-metal ratio r. The complex stoichiometry is defined by the structure of the drug, the pH and the r values. The cupric ion is able to evidence minor structural differences (doxorubicin versus 4′-epidoxorubicin), the substitution pattern of the antraquinone moiety and the self-association of the anthracycline ligand. © 1987.
Malatesta, V., Gervasini, A., Morazzoni, F. (1987). CHELATION OF COPPER(II) IONS BY DOXORUBICIN AND 4'-EPIDOXORUBICIN - ELECTRON-SPIN-RESONANCE EVIDENCE FOR A NEW COMPLEX AT HIGH ANTHRACYCLINE COPPER MOLAR RATIOS. INORGANICA CHIMICA ACTA, 136(2), 81-85 [10.1016/S0020-1693(00)87099-1].
CHELATION OF COPPER(II) IONS BY DOXORUBICIN AND 4'-EPIDOXORUBICIN - ELECTRON-SPIN-RESONANCE EVIDENCE FOR A NEW COMPLEX AT HIGH ANTHRACYCLINE COPPER MOLAR RATIOS
MORAZZONI, FRANCA
1987
Abstract
Doxorubicin and 4′-epidoxorubicin form chelate complexes with Cu(II), the structures of which are dependent on the drug-to-metal ratio r. The complex stoichiometry is defined by the structure of the drug, the pH and the r values. The cupric ion is able to evidence minor structural differences (doxorubicin versus 4′-epidoxorubicin), the substitution pattern of the antraquinone moiety and the self-association of the anthracycline ligand. © 1987.
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