Three new C-flavonoids from Corallodiscus flabellata

Three new C-glycosylflavones, named 5,7,4′-trihydroxy-6-methoxy-8-C-[β-d-xylopyranosyl- (1 → 2)]-β-d-glucopyranosyl flavonoside (1), 5,7,4′-trihydroxy-8-methoxy-6-C-[β-d-xylopyranosyl-(1 → 2)]-β-d-glucopyranosyl flavonoside (2), and 5,3′,4′-trihydroxy-7,8-dimethoxy-6-C-[β-d-xylopyranosyl-(1 → 2)]-β-...

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Bibliographic Details
Published in:Journal of asian natural products research 2007-01, Vol.9 (1), p.85-89
Main Authors: Feng, W.-S., Zheng, X.-K., Liu, Y.-B., Kuang, H.-X.
Format: Article
Language:English
Subjects:
Biological and medical sciences
C-glycosylflavone
Corallodiscus flabellata
Drugs, Chinese Herbal - chemistry
Flavones - chemistry
Flavones - isolation & purification
General pharmacology
Gesneriaceae
Magnoliopsida - chemistry
Medical sciences
Molecular Structure
Nuclear Magnetic Resonance, Biomolecular
Pharmacognosy. Homeopathy. Health food
Pharmacology. Drug treatments
Spectrometry, Mass, Fast Atom Bombardment
Spectrophotometry, Infrared
Spectrophotometry, Ultraviolet
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Summary:Three new C-glycosylflavones, named 5,7,4′-trihydroxy-6-methoxy-8-C-[β-d-xylopyranosyl- (1 → 2)]-β-d-glucopyranosyl flavonoside (1), 5,7,4′-trihydroxy-8-methoxy-6-C-[β-d-xylopyranosyl-(1 → 2)]-β-d-glucopyranosyl flavonoside (2), and 5,3′,4′-trihydroxy-7,8-dimethoxy-6-C-[β-d-xylopyranosyl-(1 → 2)]-β-d-glucopyranosyl flavonoside (3), along with two known compounds 5,4′-dihydroxy-7-methoxy-6-C-glucopyranosyl-flavonoside (4), 3-methoxy-4-hydroxymethyl benzoate (5) were isolated from 70% acetone extract of Corallodiscus flabellata. Their structures were identified on the basis of spectroscopic techniques and chemical methods.
ISSN:1028-6020
1477-2213
DOI:10.1080/10286020500386034