RESUMEN
Three biflavonoid glycosides, named carinoside B, C and D (1, 2 and 3, respectively), were isolated from the n-BuOH crude extract of the aerial part of Lomatogonium carinthiacum (Wulfen) Rchb (L. carinthiacum). The structures of 1, 2 and 3 were elucidated by spectroscopic methods, including UV, IR, HR-ESI-MS and extensive 1D and 2D NMR techniques.
Asunto(s)
Biflavonoides/química , Gentianaceae/química , Glicósidos/química , Biflavonoides/aislamiento & purificación , Glicósidos/aislamiento & purificación , Estructura Molecular , Componentes Aéreos de las Plantas/química , Extractos Vegetales/químicaRESUMEN
A biflavonoid glycoside with a new carbon skeleton, named carinoside A, was isolated from the n-BuOH crude extract of the whole plant of Lomatogonium carinthiacum (Wulf) Reichb. The structure of the new compound was elucidated by using spectroscopic methods, including UV, IR, HR-ESI-MS and extensive 1D and 2D NMR techniques.
Asunto(s)
Biflavonoides/aislamiento & purificación , Medicamentos Herbarios Chinos/aislamiento & purificación , Gentianaceae/química , Glicósidos/aislamiento & purificación , Biflavonoides/química , Medicamentos Herbarios Chinos/química , Glicósidos/química , Estructura Molecular , Resonancia Magnética Nuclear BiomolecularRESUMEN
Two new unusual xanthones, 5-O-ß-d-glucopyranosyl-1,3,8-trihydroxy-5,6,7,8-tetrahydroxanthone (1) and 1,3,5,8-tetrahydroxy-5,6,7,8-tetrahydroxanthone (2), were isolated from Lomatogonium carinthiacum (Wulf) Reichb. Their structures were elucidated on the basis of spectroscopic methods including UV, IR, ESI-MS, 1D NMR, and 2D NMR.