Abstract
Three new dammarane glycosides (1-3), together with five known compounds, gypenoside LXIX (4), gylongiposide I (5), gypenoside XLVIII (6), allantion (7) and vitexin (8) were isolated from the MeOH extract of the aerial parts of Gynostemma pentaphyllum. Compounds 5, 7, and 8 were isolated from this plant for the first time. Their structures were elucidated by 1D and 2D NMR spectra interpretation as well as by chemical degradation.
MeSH terms
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Carbohydrates / chemistry
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Dammaranes
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Flavonoids / chemistry
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Flavonoids / isolation & purification
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Glycosides / chemistry*
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Glycosides / isolation & purification
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Gynostemma / chemistry*
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Heterocyclic Compounds / chemistry
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Heterocyclic Compounds / isolation & purification
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Hydrolysis
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Magnetic Resonance Spectroscopy
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Methanol
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Plant Extracts / chemistry
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Powders
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Solvents
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Spectrometry, Mass, Electrospray Ionization
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Triterpenes / chemistry*
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Triterpenes / isolation & purification
Substances
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Carbohydrates
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Flavonoids
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Glycosides
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Heterocyclic Compounds
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Plant Extracts
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Powders
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Solvents
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Triterpenes
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Methanol