Abstract
A purple pigment neocandenatone (vestitol[6-->9";7O-->7"]obtusaquinone) was isolated from the heartwood of campincerán (Dalbergia congestiflora), an endemic Mexican tree. The isoflavan-cinnamyl phenol quinone methide structure of this compound was elucidated by HRMS, IR, and 1H and 13C NMR spectroscopic analysis, including 2D experiments (COSY, NOESY, HMQC and HSQC).
Publication types
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Research Support, Non-U.S. Gov't
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Dalbergia / chemistry*
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Indolequinones / chemistry*
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Indolequinones / isolation & purification
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Isoflavones / chemistry*
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Isoflavones / isolation & purification
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Molecular Structure
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Nuclear Magnetic Resonance, Biomolecular
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Phenols / chemistry*
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Phenols / isolation & purification
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Pigments, Biological / chemistry*
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Pigments, Biological / isolation & purification
Substances
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Indolequinones
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Isoflavones
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Phenols
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Pigments, Biological
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quinone methide