Synthesis and anti-oxidant activity of coumarinyl chalcones

Abstract

The ability to inhibit oxidative stress has been established as the prime mechanism in treatment of several disease conditions. In view of this, two new series of coumarin–chalcone hybrid molecules (5a–o and 6a–o) were synthesized using various aromatic aldehydes. The structures of the compounds were confirmed using IR, 1HNMR and mass spectral analyses. The compounds were evaluated for their antioxidant potential against 2,2-diphenyl-1-picrylhydrazyl (DPPH) and hydroxyl radicals in scavenging assays. Compounds 5o and 5k exhibited significant antioxidant potential as compared to the standard drug (ascorbic acid). It can be concluded that the coumarin–chalcone treatment have the potential to be optimized further to generate scaffolds capable to treat many pathological conditions.