Ru complexes containing Cp, mPTA and natural purine bases (mPTA = methyl-N-1,3,5-triaza-7-phosphaadamantane): Evaluation of their antiproliferative activity, solubility and redox properties

Abstract

Complexes [RuCp(Adeninate–κN9)(mPTA)2](Cl0.5)(CF3SO3)2.5·H2O (1·H2O), [RuCp(Guaninate-κN7)(mPTA)2](CF3SO3)2·H2O (2·H2O), [RuCp(Theophyllinate-κN7)(mPTA)2](CF3SO3)2·1.5H2O (3·1.5H2O) and [RuCp(Pur-κN)(mPTA)(PPh3)](CF3SO3) (4–6) (Pur = Adeninate, Guaninate, Teophyllinate; mPTA = N-methyl −1,3,5-triaza-7-phosphaadamantane) have been synthesized and characterized. Structure of complexes 1·H2O and 3·1.5H2O were determined by single-crystal X-ray diffraction. Solubility in water, Log P, electrochemical properties and antiproliferative activities of the complexes (against cisplatin-sensitive T2 and cisplatin-resistant SKOV3 cell lines) have been assessed and discussed.