New flavonoid C–O–C dimers and other chemical constituents from Garcinia brevipedicellata stem heartwood
| Autor: | Anastasie E Tih, Bintou Abderamane, Alain Blond, Bernard Bodo, Raphael T Ghogomu |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Magnetic Resonance Spectroscopy
Stereochemistry Flavonoid Amentoflavone 01 natural sciences General Biochemistry Genetics and Molecular Biology chemistry.chemical_compound Botany Molecule Flavonoids chemistry.chemical_classification Molecular Structure Plant Stems biology 010405 organic chemistry Chemistry Methanol Clusiaceae biology.organism_classification Garcinia brevipedicellata Wood 0104 chemical sciences 010404 medicinal & biomolecular chemistry Flavanones Garcinia Two-dimensional nuclear magnetic resonance spectroscopy Heteronuclear single quantum coherence spectroscopy |
| Zdroj: | Zeitschrift für Naturforschung C. 71:233-241 |
| ISSN: | 1865-7125 0939-5075 |
| DOI: | 10.1515/znc-2015-0125 |
| Popis: | The methanol extract of the stem heartwood of Garcinia brevipedicellata has furnished three new flavonoid C–O–C dimers, brevipedicilones A (6), B (8) and C (10), along with five previously reported flavonoid dimers, viz. amentoflavone (1), 4″′-O-methylamentoflavone (2), robustaflavone (3), 4′-O-methyl robustaflavone (4) and tetrahinokiflavone (5). The new structures, which are composed of flavanone–flavanonol or flavanonol–flavanonol sub-units, were established based on spectroscopic analysis including 1D and 2D NMR (1H-1H COSY, HSQC, HMBC, and NOESY) spectroscopy, and by comparing their spectral data with those reported for related compounds. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|