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Two novel resin glycosides isolated from Ipomoea cairica with α-glucosidase inhibitory activity 被引量:4
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作者 LI Jie-Hong PAN Jie-Tao YIN Yong-Qin 《Chinese Journal of Natural Medicines》 SCIE CAS CSCD 2016年第3期227-231,共5页
In the present study, two new compounds from Ipomoea cairica were identified and demonstrated to have a-glucosidase inhibitory activity. They were isolated by column chromatography on silica gel and sephadex LH-20 and... In the present study, two new compounds from Ipomoea cairica were identified and demonstrated to have a-glucosidase inhibitory activity. They were isolated by column chromatography on silica gel and sephadex LH-20 and finally purified by prep-HPLC, with their structures being elucidated by spectroscopic methods, such as 1D- and 2D-NMR and HR-TOF-MS, and chemical methods. Compounds 1 and 2, named cairicoside A and cairicoside B, were evaluated for a-glucosidase inhibitory activity by the MTT method, with the ICs0 values being 25.3 ± 1.6 and 28.5± 3.3 μmol·L-1, respectively. 展开更多
关键词 Ipomoea cairica resin glycoside Simonic acid A a-Glucosidase
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A new lignan glycoside from Forsythia suspensa 被引量:12
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作者 LI Chang DAI Yi +2 位作者 DUAN Ying-Hui LIU Ming-Li YAO Xin-Sheng 《Chinese Journal of Natural Medicines》 SCIE CAS CSCD 2014年第9期697-699,共3页
Phytochemical investigation on Forsythia suspensa(Thunb.) Vahl afforded ten compounds, including five lignan glycosides and five phenylethanoid glycosides. The compounds were isolated by using HP-20 macroporous resin,... Phytochemical investigation on Forsythia suspensa(Thunb.) Vahl afforded ten compounds, including five lignan glycosides and five phenylethanoid glycosides. The compounds were isolated by using HP-20 macroporous resin, silica gel, octadecyl silica gel(ODS), size exclusion chromatography resin HW-40 chromatography, and preparative HPLC. The structures were established through application of extensive spectroscopic methods, including ESI-MS, 1D- and 2D-NMR spectroscopy. They were identified as forsythialanside E(1), 8′-hydroxypinoresinol-4′-O-β-D-glucoside(2), 8′-hydroxypinoresinol(3), lariciresinol-4′-O-β- D-glucoside(4), lariciresinol-4-O-β-D-glucoside(5), forsythoside H(6), forsythoside I(7), forsythoside F(8), plantainoside B(9), and plantainoside A(10). Compound 1 was a new lignan glycoside. 展开更多
关键词 lignan glycoside Forsythia glucoside spectroscopic silica exclusion resin elucidated moiety
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