1991 Volume 39 Issue 12 Pages 3346-3347
The hot water extracts of Chrysanthemum morifolium, Bixa orellana and Ipomoea batatas, were found to have potent inhibitory activity towards lens aldose reductase (AR). Ellagic acid (4) was isolated from C. morifolium and I. batatas, isoscutellarein (7) from B. orellana and 3, 5-dicaffeoylquinic acid (10) from I. batatas, respectively, as potent inhibitors.