M. Veit et al., NEW KAEMPFEROL GLYCOSIDES FROM EQUISETUM SPECIES, Zeitschrift fur Naturforschung. B, A journal of chemical sciences, 48(10), 1993, pp. 1398-1400
Kaempferol-3-O-rutinoside-7-O-sophoroside and empferol-3-O-(6-O-malony
lgluco-side)-7-O-glucoside were isolated from Equisetum palustre and E
quisetum x litorale, respectively. Their structures are prooved.