Abstract
Mononuclear platinum(II) complexes with 5,7-methyl-1,2,4-triazolo[1,5-a]pyrimidine (dmtp) of the general formula cis-[Pt(X)2(dmtp)2], where X - acetate (1), trichloroacetate (2), trifluoroacetate (3), nitrate (4) have been synthesized and characterized by multinuclear magnetic resonance (1H, 13C, 15N, 195Pt) and infrared spectroscopy methods. Spectroscopic parameters indicated the presence of the PtO2N2 chromophore system with two monodentate N(3)-bonded 5,7-methyl-1,2,4-triazolo[1,5-a]pyrimidines, and two monodentate O-donor ligands (carboxylate or nitrate).A cytotoxicity assay of hydrophilic platinum(II) complexes (1–4) against three human tumour cell lines A549 (non-small cell lung carcinoma), T47D (breast cancer), HT-29 (colon adenocarcinoma), and normal murine embryonic fibroblast cells (BALB/3T3) was performed.Considering the cytotoxic parameters of the studied complexes, the best in vitro results against the human breast tumour cells (T47D) were found for cis-[Pt(OOCCCl3)2(dmtp)2] although all the tested complexes (except complex (4)) exhibited moderate in vitro activity.
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