Analysis of the antioxidant activity of an indole library: cyclic voltammetry versus ROS scavenging activity

作者：Estevao Monica S; Carvalho Luisa C; Ferreira Luisa M; Fernandes Eduarda; Marques M Manuel B^*

来源：Tetrahedron Letters, 2011, 52(1): 101-106.

DOI：10.1016/j.tetlet.2010.10.172

• Cyclic voltammetry
• Indole derivatives
• Scavenging activity
• Reactive oxygen species
• Melatonin

The electrochemical behavior of an indole library of compounds, including several tryptophan and tryptamine derivatives previously demonstrated to be active against several reactive oxygen species (ROS), was investigated. For this purpose, a voltammetry study was undertaken and the oxidation potential was correlated to the scavenging activity reported for the studied indoles. All the compounds showed an oxidation potential peak lower than that observed for indole (Epox = 1.035 V), but higher than that described for the antioxidant melatonin (Epox = 0.715 V). The electrochemical behavior showed a high correlation with the scavenging activity of peroxyl radical, for selected compounds.

• 出版日期2011-1-5