A new 5-deoxyflavone glycoside from aerial parts of Calea clausseniana.

Abstract

A new5-deoxyflavoneglycoside, identified as 7-O-(α-l-rhamnopyranosyl-(1→2)-β-d-glucopyranosyl)-3′,4′,7-trihydroxyflavone (1), was isolated from the aerialparts of Caleaclausseniana. Its structure was determined by spectral analysis.