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ELAGITANINOS Y FLAVONOIDES DE CUPHEA CARTHAGENENSIS (JACQ.) J.F.MACBR. AISLADOS POR CROMATOGRAFÍA LÍQUIDA SEMIPREPARATIVA. (Spanish)
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- Additional Information
- Alternate Title:
ELLAGITANNINS AND FLAVONOIDS FROM CUPHEA CARTHAGENENSIS (JACQ.) J.F.MACBR. ISOLATED BY SEMIPREPARATIVE LIQUID CHROMATOGRAPHY. (English)
- Abstract:
Cuphea carthagenensis was selected by the Brazilian Ministry of Health (CEME Program 1984-1998) as a native source to develop phytomedicines for the public health service. The present work reports the isolation and identification of major ellagitannins and flavonoids present in the butanolic phase of the aqueous extract of the aerial parts of C. carthagenensis by semi-preparative High Perfomance Liquid Chromatography. The identification of the compounds was carried out by analysis of nuclear magnetic resonance spectrum and mass spectrometry. The well-defined ellagitannins were oenotein B (1), woodfordin C (3) and flavonoids were quercetin (8), and quercetin-3-O-β-Dglucuronopyranosideo (10). The ellagitannin trimer oenotein A (2) was also identified, but it is found in its possible anomeric mixtures, as well as a tetramer (4, 5, 6 and 7) also in its possible anomeric mixtures, the latter confirmed by the analysis of its mass spectra. [ABSTRACT FROM AUTHOR]
- Abstract:
Cuphea carthagenensis fue seleccionada por el Ministerio de Salud del Brasil (CEME Programa 1984 -- 1998) como una fuente nativa para desarrollar fitomedicamentos para el servicio público de salud. El presente trabajo reporta la identificación y el aislamiento de elagitaninos y flavonoides mayoritarios presentes en la fase butanólica del extracto acuoso de las partes aéreas de C. carthagenensis por cromatografía líquida de alta performancia semipreparativa. La identificación de los compuestos fue realizada por análisis de sus espectros de resonancia magnética nuclear y espectro de masas. Los elagitaninos que están bien definidos fueron oenoteina B (1) y woodfordina C (3) y los flavonoides quercetina (8) y quercetina-3-O-β-D-glucuronopiranosideo (10). También fue identificado el elagitanino trimero oenoteina A (2), pero se encuentra en sus posibles mezclas anoméricas, así como, un tetrámero (4, 5, 6 y 7) también en sus posibles mezclas anoméricas, este último confirmamos por el análisis de sus espectros de masas. [ABSTRACT FROM AUTHOR]
- Abstract:
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