Abstract

A new flavonol triglycoside, Quercetin 3- O-α-rhamnopyranosyl-(1→4)-[α-rhamnopyranosyl-(1→6)-β-galactopyranoside], was isolated from the leaves of soybean ( Glycine max) cultivar “Clark” and identified by UV spectra, LC-ESI-MS, acid hydrolysis, and1H and13C NMR. The compound was found together with 7 known flavonol glycosides, quercetin 3- O-robinobioside, quercetin 3- O-rutinoside, kaempferol 3- O-rhamnosyl-(1→4)-[rhamnosyl-(1→6)-galactoside], kaempferol 3- O-robinobioside, kaempferol 3- O-rutinoside, isorhamnetin 3- O-robinobioside, and isorhamnetin 3- O-rutinoside.

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