Abstract
A NMR study of two new pterocarpans isolated from the roots of Harpalyce brasiliana is described. In addition to 1D NMR, 2D shift-correlated NMR pulse sequences ((1)H-(1)H-COSY, HSQC and HMBC) were used to establish the structures, and unambiguously perform the (1)H and (13)C chemical shift assignments.
2008 John Wiley & Sons, Ltd.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Carbon Isotopes
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Fabaceae / chemistry*
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Magnetic Resonance Spectroscopy / methods*
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Magnetic Resonance Spectroscopy / standards*
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Molecular Conformation
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Plant Roots / chemistry
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Protons
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Pterocarpans / chemistry*
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Pterocarpans / isolation & purification
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Reference Standards
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Stereoisomerism
Substances
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Carbon Isotopes
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Protons
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Pterocarpans