Medicinal flowers. VI. Absolute stereostructures of two new flavanone glycosides and a phenylbutanoid glycoside from the flowers of Chrysanthemum indicum L.: their inhibitory activities for rat lens aldose reductase. - Matsuda,H.; Morikawa,T.; Toguchida,I.; Harima,S.; Yoshikawa,M. (Chem Pharm Bull, 2002)