Abstract
In order to improve the pharmacological profile of the anticancer drug cisplatin, several new acridine-based tethered (ethane-1,2-diamine)platinum(II) complexes connected by a polymethylene chain were synthetized. Activity-structure relationship between amide or ester functionalities was explored by changing acridine-9-carboxamide into acridine-9-carboxylate chromophore. The in vitro cytotoxicity of these new complexes was assessed in human colic HCT 116, SW480 and HT-29 cancer cell lines. Series of complexes bearing the acridine-9-carboxylate chromophore displayed higher cytotoxic effect than acridine-9-carboxamide complexes, with gradual effect according to the size of the polymethylene linker.
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