Abstract
Two new glycosides, 1,6-di-O-syringoyl-β-D-glucopyranose (1) and quercetin 3-O-[(3-O-syringoyl-α-L-rhamnopyranosyl)-(1→6)-β-D-glucopyranoside] (2), along with seven known compounds were isolated from the MeOH extract of Leonurus japonicus. The structures of these compounds were elucidated by spectral analysis.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Antioxidants / chemistry
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Antioxidants / isolation & purification*
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Antioxidants / pharmacology
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Glycosides / chemistry
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Glycosides / isolation & purification*
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Glycosides / pharmacology
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Leonurus / chemistry*
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Molecular Structure
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Nuclear Magnetic Resonance, Biomolecular
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Quercetin / analogs & derivatives*
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Quercetin / chemistry
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Quercetin / isolation & purification*
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Quercetin / pharmacology
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Stereoisomerism
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Taiwan
Substances
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1,6-di-O-syringoyl-beta-D-glucopyranose
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Antioxidants
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Glycosides
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quercetin 3-O-(3-O-syringoyl-L-rhamnopyranosyl)-(1-6)-beta-D-glucopyranoside
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Quercetin