From the seeds of Achyranthes aspera three triterpenoid glycosides were isolated and their structures elucidated on the basis of NMR spectroscopic, mass spectrometric and degradative studies as α-L-rhamnopyranosyl-(1→4)-(β-D-glucopyranosyluronic acid)-(1→3)-oleanolic acid, α-L-rhamnopyranosyl-(1→4)-(β-D-glucopyranosyluronic acid)-(1→3)-oleanolic acid-28-O-β-D-glucopyranoside and α-L-rhamnopyranosyl-(1→4)-(β-D-glucopyranosyluronic acid)-(1→3)-oleanolic acid-28-O-β-D-glucopyranosyl-(1→4)-β-D-glucopyranoside.
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