RESUMO
OBJECTIVE: To study the chemical constituents from Sarcopyramis bodinieri var. delicata. METHODS: These compounds were isolated and purified by chromatography with silica gel column combined with Sephadex LH-20 column from high polar extracts. The structures were identified on the basis of extensive spectroscopic data analysis, and by comparison of their spectral data with those reported. RESULTS: Seven compounds were isolated as 3, 3'-di-O-methylellagic acid-4'-O-alpha-L-rhamnopyranoside (I), ellagic acid (II), ferulic acid (III), isoferulic acid (IV), caffeic acid (V), 3, 4-di-hydroxybenzoic acid (VI), p-hydroxycinnamic acid (VII). CONCLUSION: Compound I, III, VI, VII are isolated from the genus for the first time.
Assuntos
Ácido Elágico/análogos & derivados , Hidroxibenzoatos/isolamento & purificação , Melastomataceae/química , Monossacarídeos/isolamento & purificação , Plantas Medicinais/química , Ácidos Cumáricos/química , Ácidos Cumáricos/isolamento & purificação , Ácido Elágico/química , Ácido Elágico/isolamento & purificação , Etanol/química , Hidroxibenzoatos/química , Espectroscopia de Ressonância Magnética , Monossacarídeos/química , PropionatosRESUMO
Detailed chemical investigation of the herb Sarcopyramis bodinieri var. delicate resulted in the isolation of two new flavonol glycosides, namely, isorhamnetin-3-O-(6''-OE-feruloyl)-beta-D-glucopyranoside (1) and isorhamnetin-3-O-(6''-O-E-feruloyl)-beta-Dgalactopyranoside (2). In addition, four known compounds, quercetin-3-O-(6''-acetyl)-beta-Dglucopyranoside (3), isorhamnetin-3-O-(6''-acetyl)-beta-D-glucopyranoside (4), quercetin-3-O-(6''-O-E-p-coumaroyl)-beta-D-glucopyranoside (5), and isorhamnetin-3-O-(6''-O-E-pcoumaroyl)-beta-D-glucopyranoside (6) were obtained. The structures of the new isolates were determined by extensive spectroscopic analysis.