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E-Journal of Chemistry - Volume 5 2008, S2, Pages 1123-1132

Department of Studies in Chemistry, University of Mysore, Manasagangotri, Mysore-570 006, Karnataka, India

Received 31 March 2008; Accepted 20 May 2008

Copyright © 2008 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Dibenzb,fazepine and its five derivatives bearing different functional groups were synthesized by known methods. The compounds thus synthesized were evaluated for antioxidant potential through different in vitro models such as DPPH free radical scavenging activity, ß-carotene-linoleic acid model system, reducing power assay and phosphomolybdenum method. Under our experimental condition among the synthesized compounds dibenzb,fazepine a and 10-methoxy-5H-dibenzb,fazepine d exhibited potent antioxidant activity in concentration dependent manner in all the above four methods. Butylated hydroxyl anisole BHA and ascorbic acid AA were used as the reference antioxidant compounds. The most active compounds like dibenzb,fazepine and its methoxy group substituent have shown more promising antioxidant and radical scavengers compared to the standards like BHA and ascorbic acid. It is conceivable from the studies that the tricyclic amines, i.e. dibenzb, fazepine and some of its derivatives are effective in their antioxidant activity properties.

Autor: H. Vijay Kumar, C. R. Gnanendra, Nagaraja Naik, and D. Channe Gowda



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