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Synthesis and Comparison of Antioxidant Properties of Indole‐Based Melatonin Analogue Indole Amino Acid Derivatives
Author(s) -
Suzen Sibel,
Cihaner Seyhan Sezen,
Coban Tulay
Publication year - 2012
Publication title -
chemical biology and drug design
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.59
H-Index - 77
eISSN - 1747-0285
pISSN - 1747-0277
DOI - 10.1111/j.1747-0285.2011.01216.x
Subject(s) - melatonin , antioxidant , indole test , lipid peroxidation , chemistry , oxidative stress , amino acid , reactive oxygen species , biochemistry , biology , endocrinology
Increased levels of reactive oxygen species attributed to oxidative stress have been found to be responsible for the development of some vital diseases such as cardiovascular, neurodegenerative and autoimmune diseases. Recently, it was observed that melatonin is a highly important antioxidant, and melatonin analogues are under investigation to find out improved antioxidant activity. In this study, 14 melatonin ‐based analogue indole amino acid and N‐protected amino acid derivatives were synthesized and elucidated spectrometrically. To investigate the antioxidant activity of the synthesized compounds and to compare with melatonin, butylhydroxytoluene and vitamin E, lipid peroxidation inhibition and 2,2‐diphenyl‐1‐picrylhydrazyl radical‐scavenging activities were tested. The results indicated that the synthesized new indole amino acid derivatives have similar activities to melatonin in 2,2‐diphenyl‐1‐picrylhydrazyl radical‐scavenging activity assay but more potent activities in lipid peroxidation inhibition assay.