Study of the structure, prooxidative, and cytotoxic activity of some chelate copper(II) complexes

Tryptamine-Derived Schiff Bases: Potent Antimicrobial Agents and Evaluation of Cytotoxicity, ADME and DNA Binding Properties

Inspired by the fact that the introduction of indole pharmacophore in organic scaffolds could enable interesting pharmacological properties, the series of novel tryptamine-derived Schiff bases was synthetized. Tryptamine was used as a source of indole pattern, as well as an example of biogenic amines which chemical transformations lead to the compounds with prominent biological activities. The obtained results for antimicrobial activity against a range of bacterial and fungal strains and cytotoxic activities have revealed that Schiff base TSB4 combining the tryptamine and p-nitro aryl patterns in the structure showed better antifungal activity at low concentrations than standard drug Fluconazole, while compound TSB6 with molecular scaffold composed from tryptamine and quinoline moieties showed certain cytotoxic effect on HCT-116 cell line with a strongly expressed selectivity about healthy fibroblast cells, MRC-5. For these two selected compounds, additional ADME analysis and DNA interactions were performed. to obtain better insight into their pharmacokinetics and determination of binding mode for DNA molecules. As results suggested, strong binding of examined compounds to CT-DNA was observed, while the ADME screening showed that selected compounds possess suitable physicochemical properties for oral bioavailability and druglikeness.

Spectroscopic and theoretical investigation of the potential anti-tumor and anti-microbial agent, 3-(1-((2-hydroxyphenyl)amino)ethylidene)chroman-2,4-dione

The coumarin-orthoaminophenol derivative was prepared under mild conditions. Based on crystallographic structure, IR and Raman, ¹H and ¹³C NMR spectra the most applicable theoretical method was determined to be B3LYP-D3BJ. The stability and reactivity parameters were calculated, in the framework of NBO, QTAIM and Fukui functions, form the optimized structure. This reactivity was then probed in biological systems. The antimicrobial activity towards four bacteria and three fungi species was examined and activity was proven. In vitro cytotoxic effects, against human epithelial colorectal carcinoma HCT-116 and human healthy lung MRC-5 cell lines, of the investigated substance are also tested. Compound showed significant cytotoxic effects on HCT-116 cells, while on MRC-5 cells showed no cytotoxic effects. The effect of hydroxy group in ortho-position on the overall reactivity of molecule was examined through molecular docking with Glutathione-S-transferases.