RESUMEN
Two beta-D-glucopyranosides and two 6-O-beta-D-apiofuranosyl-beta-D-glucopyranosides of (E)-6,9-dihydroxymegastigma-4,7-dien-3-one were isolated from Vitis vinifera cv. Gewürztraminer wine and their structures were established by NMR spectroscopy.
Asunto(s)
Frutas/química , Glicósidos/aislamiento & purificación , Vino/análisis , Conformación de Carbohidratos , Cromatografía de Gases y Espectrometría de Masas , Glicósidos/química , Espectroscopía de Resonancia MagnéticaRESUMEN
Eight glycosides and a phenylpropanoid glycerol were isolated from Vitis vinifera cv. Gewurztraminer wine, and their structures were elucidated by MS and NMR spectroscopies. cis-1-(5-Ethenyl-5-methyltetrahydrofuran-2-yl)-1-methylethyl O-beta-D-apiofuranosyl-(1-->6)-O-beta-D-glucopyranoside, (E)-3,6, 9-trihydroxymegastigm-7-ene 9-O-beta-D-glucopyranoside, 2-phenylethyl O-beta-D-apiofuranosyl-(1-->6)-O-beta-D-glucopyranoside, and 2-[4-(3-hydroxypropyl)-2-methoxyphenoxy]propane-1,3-diol are reported for the first time as wine components.