Studies on the flavone glycosides from Fructus Kochiae

Abstract

A series of flavone glycosides were isolated from Fructus Kochiae for the first time, including two new flavone glycosides. The structures were established by interpretation of their spectroscopic data. Two new flavone glycosides are quercetin 3-O-β-d-apiofuranosyl-(1 → 2)-β-d-galactopyranosyl-7-O-β-d-glucopyranoside (1) and quercetin 3-O-α-l-rhamnopyranosyl-(1 → 6)-β-d-galactopyranosyl-7-O-β-d-sophoroside (2). The others are quercetin 7-O-β-d-glucopyranoside (3), quercetin 3-O-β-d-apiofuranosyl-(1 → 2)-β-d-galactopyranoside (4), quercetin 3-O-β-d-galactopyranosyl-7-O-β-d-glucopyranoside (5), and quercetin 7-O-β-d-sophoroside (6).

Keywords::

• Kochia scoparia
• Fructus Kochiae
• flavonoid
• flavone glycoside

Acknowledgment

This study was financially supported by the Science and Technology Commission of Shanghai Municipality (No. 09540704500).