Abstract
Three new compounds, 3,6-dihydroxy-4,5-dimethoxy-1,8-naphalic anhydride (1), 3,4,5,6-tetrahydroxy-1,8-naphalic anhydride (2), and methyl (7E,9E)-6,11-dioxononadeca-7,9-dienoate (3), were isolated from the stem bark of Juglans mandshurica. Their structures were elucidated on the basis of spectroscopic evidence, including 1D and 2D NMR, HR-TOF-MS, and by comparison with the literature data.
Keywords:
Juglandaceae; Juglans mandshurica; fatty acid ester; naphalic anhydride.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Drugs, Chinese Herbal / chemistry
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Drugs, Chinese Herbal / isolation & purification*
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Fatty Acids, Unsaturated / chemistry
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Fatty Acids, Unsaturated / isolation & purification*
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Juglans / chemistry*
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Molecular Structure
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Nuclear Magnetic Resonance, Biomolecular
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Phenalenes / chemistry
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Phenalenes / isolation & purification*
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Plant Bark / chemistry
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Plant Stems / chemistry
Substances
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Drugs, Chinese Herbal
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Fatty Acids, Unsaturated
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Phenalenes