[The antiradical activity of coumarin reductones]

The antiradical activity of coumarine reductones was investigated by the method of inhibition of Fe2+ induced chemiluminescence of egg-yolk lipoproteins. All coumarines studied exhibited high antioxidant activity. The dependence of chemiluminescence intensity on the antioxidant concentration shows that coumarines reductions resemble their chemical analog--ascorbic acid rather than the lipid antioxidant butilated hydroxitoluene (ionol).