Flavonol triglycosides from the leaves of Hammada scoparia (POMEL) ILJIN

Abstract

A new flavonol triglycoside, isorhamnetin 3-O-β-D-xylopyranosyl- (1‴′;→3‴)-α-L-rhamnopyranosyl- (1‴→6″)-β-D-galactopyranoside, has been isolated from the leaves of Hammada scoparia together with two known compounds, isorhamnetin 3-O-β-D-apiofuranosyl-(1‴→2″)[α-L-rhamnopyranosyl- (1‴′;→6″)]-β-D-galactopyranoside and isorhamnetin 3-O-α-L-rhamnopyranosyl-(1‴→2″)[α-L- rhamnopyranosyl-(1‴′→6″)]-β-D-galactopyranoside. The structures were determined by spectroscopic methods. © 2002 Pharmaceutical Society of Japan.