Abstract

By attaching maleimide groups to anticancer drugs are obtained which bind selectively to thiolated carrier proteins. Two maleimide ester derivatives of platinum(II) complexes which consist of an active cis-configurated platinum(II) moiety and a maleimide group capable of binding to thiolated carriers were prepared, i.e. N-( O-(3-maleimidobenzoyl)-2-hydrpxyethyl)-1,2-diaminoethanedichloropl atinum(II) ( 7) and N-( O-(2-maleimidophenyl)acetyl)-2-hydroxyethyl)-1,2-diaminoethanedichloroplatinum(II) ( 8), 7, and 8 were characterized through 1H and 11C NMR spectroscopy, IR spectroscopy, elemental analysis and mass spectrometry (FAB).

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