calycosin-7-o-beta-d-glucopyranoside and puerarin

A new flavonoid glycoside, hesperetin-7-O-[β-D-glucopyranosyl-(1 → 3)]-β-D-glucopyranosyl (1), was isolated from the n-BuOH extract of Smilax scobinicaulis, together with four known flavonoid glycosides, clematine (2), ononin (3), daidzin (4) and puerarin (5). All of the five compounds were reported from this material for the first time. Their structures were determined on the basis of spectroscopic and spectrometric methods.

Topics: Drugs, Chinese Herbal; Flavonoids; Glucosides; Glycosides; Hesperidin; Isoflavones; Molecular Structure; Nuclear Magnetic Resonance, Biomolecular; Plant Roots; Rhizome; Smilax

To investigate the isoflavones from the vines of Pueraria lobata.. The compounds were isolated by column chromatography over silica gel and RP-C18, and purified by Sephadex LH-20 column chromatography and preparative TLC. The structures were elucidated on the basis of physico-chemical properties and spectral data.. Twelve compounds were isolated and identified as: 3'-methoxydaidzein (1), formononetin (2), genistein (3), daidzein (4), daidzin (5), genistin (6), ononin (7), 5-hydroxyl ononin (8), calycosin (9), 6"-O-acetyl genistein (10), 6"-O-acetyl daidzin (11), puerarin (12).. For the first time, compounds 9-11 were isolated from the genus Pueraria plant, and compounds 1, 3, 6-8 were obtained from the vines of this plant.

Topics: Genistein; Glucosides; Isoflavones; Magnetic Resonance Spectroscopy; Plant Stems; Pueraria