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- W2953679685 abstract "Three novel Py2N2-cobalt(III) complexes with the 5-hydroxy-1,4-naphthoquinone nuclei (NQ) were evaluated as potential hypoxia-activated anticancer prodrugs. The complexes were synthesized and fully characterized by IR and UV–Visible spectroscopies, ESI mass spectrometry and CHN elemental analysis. Structural information was obtained from density functional theory (DFT) calculations. Cyclic voltammetry analysis in acetonitrile indicates that the ligand substituents (H, CH3 and p-tolylthio) do not have a relevant effect on the Co3+/Co2+ redox potential. Reactions with ascorbic acid in phosphate buffers were performed to simulate redox activation of the complexes in biological media. Fast and irreversible dissociation of the NQ ligands was observed for all complexes upon Co3+/Co2+ reduction. Cytotoxic activity of complexes 1 and 3 was evaluated in tumor cells (HT-29 and HCT-116) under hypoxic and normoxic conditions." @default.
- W2953679685 created "2019-07-12" @default.
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- W2953679685 date "2019-10-01" @default.
- W2953679685 modified "2023-10-18" @default.
- W2953679685 title "Evaluation of 5-hydroxy-1,4-naphthoquinone-cobalt(III) complexes for hypoxia-activated drug delivery" @default.
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- W2953679685 doi "https://doi.org/10.1016/j.jinorgbio.2019.110756" @default.
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