Two new steroidal saponins from the rhizomes of Dioscorea zingiberensis / 中国天然药物
Chinese Journal of Natural Medicines (English Ed.)
; (6): 142-147, 2014.
Article
в En
| WPRIM
| ID: wpr-812296
Ответственная библиотека:
WPRO
ABSTRACT
AIM@#To investigate the chemical constituents of Dioscorea zingiberensis C. H. Wright.@*METHODS@#The compounds were isolated by various chromatographic techniques, and the structures of the new steroidal saponins were elucidated by extensive 1D- and 2D-NMR, MS, and IR spectral analysis.@*RESULTS@#The 70% EtOH extract of the rhizomes of Dioscorea zingiberensis afforded two new steroidal saponins, zingiberenosides A (1) and B (2), along with eight known analogues, 3β, 26-dihydroxy-25(R)-furosta-Δ(5, 20(22))-diene-3-O-α-L- rhamnopyranosyl-(1→2)-O-β-D-glucopyranoside (3), methyl parvifloside (4), deltoside (5), methyl deltoside (6), zingiberensis new saponin (7), deltonin (8), progenin III (9) and diosgenin-diglucoside (10).@*CONCLUSION@#Two new steroidal saponins were isolated from Dioscorea zingiberensis and their structures determined.
Key words
Полный текст:
1
База данных:
WPRIM
Основная тема:
Saponins
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Spirostans
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Steroids
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Plant Extracts
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Molecular Structure
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Chemistry
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Dioscorea
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Rhizome
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Diosgenin
Язык:
En
Журнал:
Chinese Journal of Natural Medicines (English Ed.)
Год:
2014
Тип:
Article