Geranylated flavonoids from Dorstenia poinsettifolia

Geranylated flavonoids from Dorstenia poinsettifolia

Two new geranylated flavonoids, poinsettifolins A and B, were isolated from the extracts of the herb Dorstenia poinsettifolia, and the structures were determined with NMR spectroscopy and mass spectrometry. In addition, the flavone 5,7,4-trihydroxy-8-prenylflavone (licoflavone C), the chalcones 4,2′...

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Bibliographic Details
Published in:Phytochemistry (Oxford) Vol. 48; no. 2; pp. 345 - 348
Main Authors: Tsopmo, Apollinaire, Tene, Mattieu, Kamnaing, Pierre, Ngnokam, David, Ayafor, Johnson Foyere, Sterner, Olov
Format: Journal Article
Language:English
Published: Amsterdam Elsevier Ltd 01-05-1998
Elsevier
Subjects:
Biological and medical sciences
chemical constituents of plants
Chemical constitution
chemical structure
flavonoids
Fundamental and applied biological sciences. Psychology
medicinal plants
Moraceae
nuclear magnetic resonance spectroscopy
plant extracts
Plant physiology and development
spectral analysis
Cameroon
Central Africa
Africa
isolation
Moraceae
structure determination
flavonoids
Dorstenia poinsettifolia
poinsettifolins A and B
Folk medicine
Molecular structure
Dicotyledones
Angiospermae
Isolation
Spermatophyta
Flavonoid
Medicinal plant
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Summary:Two new geranylated flavonoids, poinsettifolins A and B, were isolated from the extracts of the herb Dorstenia poinsettifolia, and the structures were determined with NMR spectroscopy and mass spectrometry. In addition, the flavone 5,7,4-trihydroxy-8-prenylflavone (licoflavone C), the chalcones 4,2′,4′-trihydroxy-3′-prenylchalcone (isobavachalcone) and isobavachromene, the triterpene butyrospermol, and the carotenoid lutein were isolated.
ISSN:0031-9422
1873-3700
DOI:10.1016/S0031-9422(97)01114-X