- Two new flavonoid glycosides from Semen Ziziphi Spinosae
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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.
- Zhang, Lin,Xu, Zhi-Lin,Wu, Chun-Fu,Yang, Jing-Yu,Kano, Yoshihiro,Yuan, Dan
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experimental part
p. 121 - 128
(2012/03/27)
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- A novel spinosin derivative from Semen Ziziphi Spinosae
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A novel spinosin derivative, 6?-(4?-O-b-D-glucopyranosyl)- vanilloyl spinosin (1) was isolated from the methanol extract of Semen Ziziphi Spinosae, together with five known flavonoids, swertish (2), spinosin (3), 6?-feruloylspinosin (4), isospinosin (5) and kaempferol 3-O-a-L-rhamnopyranosyl-(1 → 2)-O-[O-a-L-rhamnopyranosyl-(1 → 6)]-b-D-glucopyranoside (6), and two alkanoids, zizyphusine (7) and 6-(2′,3′-dihydroxyl-4′-hydroxymethyl-tetrahydro-furan- 1′-yl)-cyclopentene[c]pyrrole-1,3-diol (8). The structure of compound 1 was elucidated by spectroscopic methods including UV, IR, ESI-TOF-MS, 1D, and 2D NMR techniques.
- Xie, Yuan-Yuan,Xu, Zhi-Lin,Wang, Hui,Kano, Yoshihiro,Yuan, Dan
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experimental part
p. 1151 - 1157
(2012/02/16)
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