Abstract
Eucaglobulin (1), a new complex of gallotannin and monoterpene, was isolated from the leaves of Eucaloptus globulus. Its structure was elucidated on the basis of spectral data. Four known hydrolyzable tannins [tellimagrandin I (2), eucalbanin C (3), 2-O-digalloyl-1,3,4-tri-O-galloyl-beta-D-glucose (4), 6-O-digalloyl-1,2,3-tri-O-galloyl-beta-D-glucose (5)], as well as gallic acid (6) and (+)-catechin (7), were also isolated. The antibacterial effects of some of these compounds were examined.
MeSH terms
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Anti-Bacterial Agents / pharmacology
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Bacteria / drug effects
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Chromatography
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Drugs, Chinese Herbal*
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Eucalyptus / chemistry*
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Humans
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Hydrolysis
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Hydrolyzable Tannins*
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Magnetic Resonance Spectroscopy
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Microbial Sensitivity Tests
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Molecular Structure
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Monoterpenes*
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Plant Leaves / chemistry
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Plants, Medicinal*
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Tannins / chemistry
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Tannins / isolation & purification*
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Tannins / pharmacology
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Terpenes / chemistry
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Terpenes / isolation & purification*
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Terpenes / pharmacology
Substances
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Anti-Bacterial Agents
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Drugs, Chinese Herbal
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Hydrolyzable Tannins
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Monoterpenes
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Tannins
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Terpenes
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eucaglobulin