Figure 3
From: Synthesis, antioxidant and cytoprotective activity evaluation of C-3 substituted indole derivatives
(a) DPPH free radical scavenging activity of compounds tested and standard antioxidants Trolox and BHT. (b) The Fe3+-Fe2+ reductive potential of compounds tested, and standard antioxidants Trolox and BHT. (c) Ferrous ions chelating activity of derivatives and standard chelating agent EDTA. All compounds were used at a concentration equal to 0.1 mg/mL. The results are presented as the mean value ± standard deviation (***P < 0.001, **P < 0.01, *P < 0.05) in comparison with standard antioxidants Trolox or EDTA, respectively. Inactive derivatives are indicated as n.a. Non statistically significant difference is indicated as ns.
