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Original Articles

Two new flavonoid glycosides from Semen Ziziphi Spinosae

, , , , &
Pages 121-128 | Received 22 Jul 2011, Accepted 30 Oct 2011, Published online: 01 Feb 2012
 

Abstract

Two novel flavonoid glycosides, 6‴-dihydrophaseoylspinosin (1) and 6″,6‴-diferuloylspinosin (2), were isolated from the MeOH extract of Semen Ziziphi Spinosae, together with six known flavonoids, isovitexin-2″-O-β-(6-O-E-feruloyl)glucopyranoside (3), spinosin (4), isospinosin (5), 6‴-feruloylspinosin (6), swertisin (7), and isovitexin-2″-O-β-d-glucopyranoside (8). The structures of 1 and 2 were elucidated by spectroscopic methods including UV, IR, ESI-TOF-MS, 1D NMR, and 2D NMR experiments.

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