Bioinorganic chemistry represents the link between inorganic chemistry and biology and studies the role of metals in biological systems. It began to develop intensively after the approval of cisplatin for the treatment of certain cancer diseases. Despite numerous side effects and resistance, platinum chemotherapeutics are still among the most commonly used chemotherapeutics. Due to these disadvantages, the development of new metal-based anticancer drugs has begun. New platinum coordination compounds are still being explored and research has also extended to other metals, such as ruthenium and rhenium, which has been studied more intensively in recent years. Pyrithione is a cyclic thiohydroxamic acid that has shown interesting and versatile activity in biological systems since its discovery. Due to its nature, it can be a good ligand and can be used for the synthesis of coordination compounds that have also been shown to be active in biological systems.
As part of the doctoral thesis, we synthesised pyrithione ligands with different functional groups in two steps. The resulting ligands were used for the synthesis of organoruthenium(II) coordination compounds, with chlorido ligand and ligands containing a donor atom from group 15 of the periodic table, platinum(II) coordination compounds and rhenium coordination compounds. The compounds were physico-chemically characterised using various methods, including NMR spectroscopy, high-resolution mass spectrometry, elemental analysis CHN and spectroscopy (IR and UV-Vis). In cases where we were able to prepare suitable single crystals of the compounds, their crystal structures were determined using single crystal X-ray diffraction. We investigated what happens to the compounds in solution. Additionally, the prepared compounds were also evaluated in biological systems, where the compounds were tested for their anticancer activity and in some cases also for inhibition of selected enzymes associated with cancer. In addition, we also tested the antibacterial and antiviral activity of some compounds.
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