Abstract
Four new saponins, camelliagenin A and B derivatives, and one new secoiridoid glucoside were isolated from the stem bark of Aptandra zenkeri Engl. (Aptandraceae) together with two known secoiridoid glucosides. Their structures were determined based on a combination of 1D- and 2D-NMR experiments techniques and HR-ESI-MS analysis. This is the first report on saponins in genus Aptandra.
Keywords:
Aptandra zenkeri Engl.; Aptandraceae; secoiridoid glucosides; triterpenoid saponins.
MeSH terms
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Glucosides
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Glycosides / chemistry*
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Glycosides / isolation & purification
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Iridoid Glucosides / chemistry*
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Iridoid Glucosides / isolation & purification
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Magnetic Resonance Spectroscopy
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Mass Spectrometry
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Molecular Structure
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Oleanolic Acid / analogs & derivatives*
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Oleanolic Acid / chemistry
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Plant Extracts / chemistry*
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Saponins / chemistry
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Saponins / isolation & purification*
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Triterpenes
Substances
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Glucosides
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Glycosides
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Iridoid Glucosides
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Plant Extracts
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Saponins
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Triterpenes
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camelliagenin
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oleanane
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Oleanolic Acid