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- W2372492548 abstract "Objective To study the chemical constituents of Dioscorea zingiberensis.Methods The fresh rhizome of D.zingiberensis was extracted three times,3 h once with EtOH-H2O at 80 ℃.The EtOH was evaporated under reduced pressure to give a residue which was suspended in water and then was exacted with petroleum ether,ethyl acetate,and n-butanol fraction.The water fraction was isolated by the reversed-phase ODS column chromatography.The chemical structures were elucidated by means of 1H-NMR,13C-NMR,135DEPT,HMQC,and HMBC spectroscopic analyses.Results Three steroidal saponins were isolated from the fresh rhizome of D.zingiberensis.The compounds were identified as:diosgenin-3-O-β-D-glucopyranosyl(1→3)-β-D-glucopyranosyl(1→4)-[α-L-rhamnopyranosyl(1→2)]-β-D-glucopyranoside(Ⅰ),(25R)-26-O-β-D-glucopyranosyl-furost-5-en-3β,22ζ-diol-3-O-β-D-glucopyranosyl(1→3)-β-D-glucopyranosyl(1→4)-[α-L-rhamnopyranosyl(1→2)]-β-D-glucopyranoside(Ⅱ),and(25R)-26-O-β-D-glucopyranosyl-furost-5-en-3β,22ζ-diol-7-carbonyl-3-O-β-D-glucopyranosyl(1→3)-β-D-glucopyranosyl(1→4)-[α-L-rhamnopyranosyl(1→2)]-β-D-glucopyranoside(Ⅲ).Conclusion Compound Ⅲ is a novel compound named as zingiberenin H." @default.
- W2372492548 created "2016-06-24" @default.
- W2372492548 creator A5056077321 @default.
- W2372492548 date "2008-01-01" @default.
- W2372492548 modified "2023-09-24" @default.
- W2372492548 title "Isolation and structure identification of steroidal saponin from Dioscorea zingiberensis" @default.
- W2372492548 hasPublicationYear "2008" @default.
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