20.500.12556/RUL-172601 Synthesis of a fac-tricarbonylrhenium(I) complex with pyrithione, its physicochemical characterization, and assessment of biological effects Research on rhenium complexes containing fac-tricarbonyl fragments has been on the rise in recent decades. Some complexes of this type exhibit advantageous properties that can be utilized in diagnostic and therapeutic applications. Herein, we report on the synthesis, structural characterization, solution speciation, and biological activity with mode of action studies of a new fac-tricarbonylrhenium(I) complex with pyrithione ligand fac-[Re(CO)$_3$(pyrithionato)(benzonitrile)] (4). In an attempt to prepare a stable rhenium(I) complex with a pyrithionato ligand, several synthesis procedures were investigated and various products were discovered. In solution, the monodentate benzonitrile ligand can be replaced by a coordinating solvent molecule; however, the carbonyl ligands and pyrithione remain bound to the rhenium center. Complex 4 exhibited strong cytotoxic and antibacterial activity and effectively inhibited the growth of the HSV-2 virus. Additionally, complex 4 was also able to inhibit the cathepsin B enzyme (both its endo- and exopeptidase activities). In silico experiments confirmed that complex 4 can interact with cathepsin B near its active site, which may contribute to reduced enzymatic activity. antimicrobial agents degradation inhibition ligands peptides proteins renij trikarbonilrenijevi(I) kompleksi pirition biološka aktivnost true false true Angleški jezik Slovenski jezik Članek v reviji 2025-09-09 13:52:47 2025-09-09 13:52:48 2025-12-06 04:45:12 0000-00-00 00:00:00 2025 0 0 Str. 38272-38291 iss. 33 Vol. 10 26 Aug. 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 546.719:547.82 2470-1343 10.1021/acsomega.5c06647 247217923 synthesis-of-a-fac-tricarbonylrhenium(i)-complex-with-pyrithione-its-physicochemical-characterization-and-assessment-of.pdf synthesis-of-a-fac-tricarbonylrhenium(i)-complex-with-pyrithione-its-physicochemical-characterization-and-assessment-of.pdf 1 D1206CD777D87FEA2792F266DA95E1F8 27e5945ecc010e3e7a8dcbb862d214b3a8be8a02aa5bb90bf4293f9172a586cd e9f8eba4-d1bc-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=223056 https://pubs.acs.org/doi/10.1021/acsomega.5c06647 1 599e70cc-8d73-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=216517 Fakulteta za kemijo in kemijsko tehnologijo Fakulteta za farmacijo 0 0 0