Abstract
A new pyrrolidine derivative, (5S)-hydroxyethyl 2-oxopyrrolidine-5-carboxylate (1), a new flavonol glycoside, tamaraxetin 3,7-di-O-α-L-rhamnopyranoside (2), and a new triterpene saponin, polyscioside A methyl ester (3), along with six known compounds (4-9) were isolated from the leaves of Polyscias balfouriana. Their chemical structures were elucidated on the basis of extensive spectroscopic analysis.
Keywords:
Araliaceae; Polyscias balfouriana; Pyrrolidine; Tamaraxetin.
MeSH terms
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Araliaceae / chemistry*
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Flavonols / chemistry
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Flavonols / isolation & purification
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Glycosides / chemistry
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Glycosides / isolation & purification*
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Molecular Structure
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Plant Extracts / chemistry*
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Plant Leaves / chemistry
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Pyrrolidines / chemistry
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Pyrrolidines / isolation & purification*
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Saponins / chemistry
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Saponins / isolation & purification
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Triterpenes / chemistry
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Triterpenes / isolation & purification*
Substances
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(5S)-hydroxyethyl 2-oxopyrrolidine-5-carboxylate
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Flavonols
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Glycosides
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Plant Extracts
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Pyrrolidines
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Saponins
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Triterpenes
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polyscioside A methyl ester
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tamaraxetin 3,7-di-O-alpha-L-rhamnopyranoside