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Polyunsaturated fatty acid-derived chromones exhibiting potent antioxidant activity
Yasser M A Mohamed1, Anders Vik, Tim Hofer
1School of Pharmacy, Department of Pharmaceutical Chemistry, University of Oslo, P.O. Box 1068 Blindern, N-0316 Oslo, Norway.
Abstract:
The marine polyunsaturated lipid-derived natural product all-(Z)-5,7-dihydroxy-2-(4Z,7Z,10Z,13Z,16Z-nonadecapentaenyl) (1) and four analogs 5-8 have been synthesized and evaluated as antioxidants in two cell-based assays. The natural product 1 and the analog 5 exhibited interesting antioxidant effects with IC50-values of 14±9 and 29±3μM, respectively, in a cellular lipid peroxidation antioxidant activity assay using HepG2 cells. Moreover, in the HepG2 cellular antioxidant activity assay, the natural product 1 exhibited strong protective effects against reactive oxygen species with an IC50=160±25μM.
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