New flavonoid C-O-C dimers and other chemical constituents from Garcinia brevipedicellata stem heartwood.
Z Naturforsch C J Biosci
; 71(7-8): 233-41, 2016.
Article
en En
| MEDLINE
| ID: mdl-27343472
ABSTRACT
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), 4â³'-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.
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Madera
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Flavonoides
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Tallos de la Planta
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Garcinia
Idioma:
En
Revista:
Z Naturforsch C J Biosci
Año:
2016
Tipo del documento:
Article