RESUMEN
OBJECTIVE: To study the chemical constituents from the stem bark of Trewia nudiflora. METHOD: The chemical constituents were isolated by silica gel and sephadex LH - 20 column chromatography, and the structures were elucidated by means of spectral analysis. RESULT: Ten compounds were obtained from EtOAc fraction of EtOH extract and identified as stigmast-4-en-6beta-ol-3-one (1), stigmast-4-en-6alpha-ol-3-one (2), 7beta-hydroxysitosterol (3), 7alpha-hydroxysitosterol (4), schleicheol 2 (5), taraxerone (6), abbeokutone (7), beta-hydroxypropiovanillone (8), o-vanillyl alcohol (9), glycerol monopalmitate (10). CONCLUSION: Compounds 1-5 and 7-9 were isolated from this plant for the first time.
Asunto(s)
Mallotus (Planta)/química , Corteza de la Planta/química , Tallos de la Planta/química , Cromatografía en Gel , Medicamentos Herbarios Chinos/químicaRESUMEN
A new ellagic acid glycoside, 4'-O-methylellagic acid 4-O-beta-D-glucopyranoside (1), was isolated from the root cortex of Paeonia delavayi. The structure was elucidated on the basis of spectroscopic methods.
Asunto(s)
Ácido Elágico/análogos & derivados , Monosacáridos/aislamiento & purificación , Paeonia/química , Ácido Elágico/química , Ácido Elágico/aislamiento & purificación , Estructura Molecular , Monosacáridos/química , Raíces de Plantas , Análisis EspectralRESUMEN
A new monoterpene glycoside, 4-O-methyl-4''-hydroxy-3''-methoxy-paeoniflorin (1), was isolated from the root cortex of Paeonia delavayi along with the known paeoniflorin, oxypaeoniflorin, benzoylpaeoniflorin, benzoyloxypaeoniflorin, albiflorin and a paeonilactone-A.