Abstract
Chemical investigation of Stephania rotunda Lour. growing in Viet Nam led to the isolation and structural elucidation of three new alkaloids, 5-hydroxy-6,7-dimethoxy-3,4-dihydroisoquinolin-1(2H)-one (1), thaicanine 4-O-beta-D-glucoside (6), as well as (-)-thaicanine N-oxide (4-hydroxycorynoxidine) (8), along with 23 known alkaloids. These structures were determined on the basis of MS and NMR spectroscopic data.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Alkaloids / chemistry*
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Alkaloids / isolation & purification
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Berberine Alkaloids / chemistry*
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Berberine Alkaloids / isolation & purification
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Heterocyclic Compounds, 4 or More Rings / chemistry*
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Heterocyclic Compounds, 4 or More Rings / isolation & purification
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Isoquinolines / chemistry*
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Isoquinolines / isolation & purification
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Magnetic Resonance Spectroscopy
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Mass Spectrometry
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Monosaccharides / chemistry*
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Monosaccharides / isolation & purification
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Spectrometry, Mass, Electrospray Ionization
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Stephania / chemistry*
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Vietnam
Substances
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5-hydroxy-6,7-dimethoxy-3,4-dihydroisoquinolin-1(2H)-one
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Alkaloids
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Berberine Alkaloids
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Heterocyclic Compounds, 4 or More Rings
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Isoquinolines
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Monosaccharides
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thaicanine 4-O-beta-D-glucoside
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thaicanine N-oxide (4-hydroxycorynoxidine)
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protoberberine