Kaempferol 7-O-rhamnoside-'-O-glucoside from Pteridium aquilinum.

摘要

A new flavonol glycoside from the aerial parts of Pteridium aquilinum was identified as kaempferol 7-O-rhamnoside-4'-O-glucoside by chemical and spectral methods. In addition, a mixture of quercetin 3-O-fructoside and isoquercitrin was found in thisplant material.