Studies on the constituents of Epimedium koreanum. III

Abstract

A new flavonol glycoside, epimedin L (1), a new chromone, 5,7-dihydroxy- 2-(p-hydroxy-phenoxy)-6-prenylchromone (2), and icariside A7 (3) were isolated from the aerial parts of Epimedium koreanum NAKAI (Berberidaceae) together with six known compounds, chaohuoside A (epimedin L) (4), 8- prenylkaempferol (5), anhydroicaritin (6), ginkgetin (7), isoginkgetin (8) and bilobetin (9). Their structures were established by spectroscopic methods and chemical evidence.