New Insights into the Chemistry of the Antineoplastic Lanthanum Complex Tris(1,10‐phenanthroline)tris(thiocyanato‐κ<i>N</i>)lanthanum(III) (KP772) and Its Interaction with Biomolecules

Abstract

Abstract The lanthanide complex tris(1,10‐phenanthroline)tris(thiocyanato‐κ N )lanthanum(III) [La(phen) 3 (NCS) 3 ] (KP772) is a promising anticancer drug candidate, capable of overcoming resistance of tumors to established chemotherapeutics. The compound was characterized by elemental analysis, IR, 1 H NMR spectroscopy, TG/DTA measurements, mass spectrometry and X‐ray diffraction analysis. The results indicate that KP772 is a neutral, nine‐coordinate complex. In addition the behavior in water, important for the application as a chemotherapeutic drug, and the binding to biomolecules was investigated by capillary electrophoresis and ICP‐MS.(© Wiley‐VCH Verlag GmbH &amp; Co. KGaA, 69451 Weinheim, Germany, 2009)