Glycosides fromBougainvillea glabra
| Autor: | Hesham S. M. Soliman, András Simon, Hanan Samir, Gábor Tóth, Helmut Duddeck, Ibrahim I. Mahmoud |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
chemistry.chemical_classification
Magnetic Resonance Spectroscopy Oleanolate Natural product biology Momordin Stereochemistry Organic Chemistry Glycoside Stereoisomerism Plant Science biology.organism_classification Biochemistry Analytical Chemistry chemistry.chemical_compound chemistry Glycosides Quercetin Bougainvillea glabra Two-dimensional nuclear magnetic resonance spectroscopy Nyctaginaceae Derivative (chemistry) |
| Zdroj: | Natural Product Research. 20:63-67 |
| ISSN: | 1478-6427 1478-6419 |
| DOI: | 10.1080/14786410500162351 |
| Popis: | Three glycosides were isolated from Bougainvillea glabra and their structures were determined by extensive use of 1D and 2D NMR spectroscopy ((1)H and (13)C). First compound was identical to momordin IIc (quinoside D) [beta-D-glucopyranosyl 3-O-[beta-D-xylopyranosyl-(1 --3)-O-(beta-D-glucopyranosyluronic acid)] oleanolate], second compound was quercetin 3-O-alpha-L-(rhamnopyranosyl)(1 --6)-[alpha-L-rhamnopy-ranosyl(1 --2)]-beta-D-galactopyranoside and third compound was its derivative quercetin 3-O-alpha-L-(4-caffeoylrhamnopyranosyl)(1 --6)-[alpha-L-rhamnopyranosyl (1 --2)]-beta-D-galactopyranoside, a new natural product. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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