Molecular structure of fagopyritol A1 (O-alpha-D-galactopyranosyl-(1 --> 3)-D-chiro-inositol) by NMR.

Obendorf, R L; Steadman, K J; Fuller, D J; Horbowicz, M; Lewis, B A

Obendorf, R L; Steadman, K J; Fuller, D J; Horbowicz, M; Lewis, B A.

Afiliación

Obendorf RL; Department of Crop and Soil Sciences, Cornell University, Ithaca, NY 14853-1901, USA. rlo1@cornell.edu

Carbohydr Res ; 328(4): 623-7, 2000 Oct 06.

Article en En | MEDLINE | ID: mdl-11093720

RESUMEN

The molecular structure of fagopyritol A1, a novel galactopyranosyl cyclitol from buckwheat seeds, was determined to be O-alpha-D-galactopyranosyl-(1 --> 3)-D-chiro-inositol by 1H and 13C NMR. Fagopyritol A1 is a positional isomer of fagopyritol B1 (O-alpha-D-galactopyranosyl-(1 --> 2)-D-chiro-inositol), representing a different series of fagopyritol oligomers. Trimethylsilyl derivatives of both compounds have similar mass spectra, but each may be identified by different abundance ratios of fragments with m/z 305/318 and 318/319.

Asunto(s)

Disacáridos/química; Resonancia Magnética Nuclear Biomolecular; Secuencia de Carbohidratos; Fagopyrum/química; Espectrometría de Masas; Semillas/química; Análisis de Secuencia

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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Resonancia Magnética Nuclear Biomolecular / Disacáridos Idioma: En Revista: Carbohydr Res Año: 2000 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Países Bajos

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