Abstract
Two alkaloids N-methyl-4-hydroxy-7-methoxy-3-(2,3-epoxy-3-methylbutyl)-1H-quinolin-2-one (1) and 3-(2,3-dihydroxy-3-methylbutyl)-4,7-dimethoxy-1-methyl-1H-quinolin-2-one (2a) have been isolated from CH(2)Cl(2):methanol (1:1) and methanol extracts of leaves and stems of Toddalia aculeata. Their structures along with that of 15 other compounds, of which three are isolated for the first time from genus Toddalia, were established by their detailed spectral studies including 2D NMR viz. (1)H-(1)H COSY, (1)H-(13)C COSY, and HMBC.
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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Gas Chromatography-Mass Spectrometry
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Molecular Conformation
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Nuclear Magnetic Resonance, Biomolecular
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Plant Leaves / chemistry
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Plant Stems / chemistry
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Quinolones / chemistry*
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Quinolones / isolation & purification
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Rutaceae / chemistry*
Substances
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3-(2,3-dihydroxy-3-methylbutyl)-4,7-dimethoxy-1-methyl-1H-quinolin-2-one
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Alkaloids
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N-methyl-4-hydroxy-7-methoxy-3-(2,3-epoxy-3-methylbutyl)-1H-quinolin-2-one
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Quinolones