Water soluble isoflavonoids from Maackia amurensis roots. N.I. KULESH, S.A. FEDOREEV, M.V. VESELOVA, V.A. DENISENKO

Abstract

Seven isoflavonoids, including five new glycosides, were isolated from bark of Maackia amurensis roots, and their structures were identified as daidzin-4’-O-gentiobioside, 7-O-gentiobiosyldaidzein-4’-O-β-D-glucopyranoside, 7-O-gentiobiosylgenistein-4’-O-β-D-glucopyranoside, 3’-methoxydaidzein-7-O-gentiobioside and kalikosin-7-Ogentiobioside. In the roots of M. amurensis, the isoflavonoids 4’-O-β-D-glucopyranosides of daidzin and genistin were found for the first time.