Neocandenatone, an isoflavan-cinnamylphenol quinone methide pigment from Dalbergia congestiflora

Neocandenatone, (vestitol[6→9″;7O→7″]obtusaquinone), purple pigment obtained from the campincerán tree was isolated and its structure elucidated by the spectroscopic techniques. A purple pigment neocandenatone (vestitol[6→9″;7O→7″]obtusaquinone) was isolated from the heartwood of campincerán ( Dalbe...

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Veröffentlicht in:	Phytochemistry (Oxford) 2004-04, Vol.65 (7), p.925-928
Hauptverfasser:	Barragán-Huerta, Blanca E, Peralta-Cruz, Javier, González-Laredo, Rubén F, Karchesy, Joe
Format:	Artikel
Sprache:	eng
Schlagworte:	Biological and medical sciences Campincerán Chemical constitution Dalbergia - chemistry Dalbergia congestiflora Fundamental and applied biological sciences. Psychology Heartwood pigment Indolequinones - chemistry Indolequinones - isolation & purification Isoflavan-cinnamylphenol Isoflavones - chemistry Isoflavones - isolation & purification Leguminosae Molecular Structure Nuclear Magnetic Resonance, Biomolecular Phenols - chemistry Phenols - isolation & purification Pigments, Biological - chemistry Pigments, Biological - isolation & purification Plant physiology and development
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Zusammenfassung:	Neocandenatone, (vestitol[6→9″;7O→7″]obtusaquinone), purple pigment obtained from the campincerán tree was isolated and its structure elucidated by the spectroscopic techniques. 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).
ISSN:	0031-9422 1873-3700
DOI:	10.1016/j.phytochem.2003.11.011