A new biologically active flavonol glycoside from the seeds of Abrus precatorius Linn

A new flavonol glycoside m.f. C 29 H 34 O 16 , m.p. 260-262°C, [M] + 638 (EIMS) was separated from the chloroform soluble fraction of the concentrated 80% methanolic extract of the seeds of Abrus precatorius (Linn). It was characterised as a new biologically active flavonol glycoside 7,3',5'-trimethoxy-4'-hydroxy flavone-3- O - g - d -galactosyl-(1 M 4)- f - l -xyloside (1) by several colour reactions, spectral analysis and chemical degradations.

Keywords:

• Abrus Precatorius (Linn)
• Leguminosae
• Flavonoid