Results 51 to 60 of about 129 (81)
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The biflavonoids of Plagiomnium undulatum
Phytochemistry, 1996Abstract The biflavonoid pattern of Plagiomnium undulatum has been studied. Besides two known biflavonoids the new 3‴-desoxydicranolomin, 2,3-dihydro-3‴-desoxydicranolomin and 2,3-dihydro-5′,3‴-dihydroxyrobustaflavone have been isolated, and their structures elucidated spectroscopically.
Christoph Rampendahl +3 more
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A New Biflavonoid from Aristolochia contorta.
ChemInform, 2006AbstractFor Abstract see ChemInform Abstract in Full Text.
Li-Li, Yu +4 more
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Anti-influenza virus activity of biflavonoids
Bioorganic & Medicinal Chemistry Letters, 2007Ginkgetin was found to inhibit the influenza virus sialidase. Ginkgetin-sialic acid conjugates showed a significant survival effect in the influenza-virus-infected mice.
Kazuhiko, Miki +8 more
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Diastereoisomeric biflavonoids and a cleaved biflavonoid from Ochna rhizomatosa
Planta MedicaBiflavonoids are structurally diverse secondary metabolites with biological activity of high relevance, such as anticancer, antibacterial, antioxidant and anti-inflammatory, among others [1] [2]. In this study, we report the isolation of two diastereoisomeric biflavonoids (Fig.
Tchoukoua, Abdou +2 more
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A bioactive biflavonoid from Campnosperma panamense
Fitoterapia, 2004Lanaroflavone (1), a biflavonoid isolated from the methanol extract of the aerial part of Campnosperma panamense by bioguided fractionation, has been assessed for in vitro antiprotozoal activity. Lanaroflavone showed both antimalarial and leishmanicidal activities, but was inactive against Chagas disease vector, Trypanosoma cruzi.
B, Weniger +5 more
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Synthesis of Phospholipase A2 Inhibitory Biflavonoids.
ChemInform, 2006AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Jianjun, Chen +3 more
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Tetraflavonoid and biflavonoids from Aristolochia ridicula
Phytochemistry, 2008Biflavones, a chalcone-flavone, and a tetraflavonoid with a new carbon skeleton were isolated from the leaves of Aristolochia ridicula. Their structures were determined by chemical derivatizations and spectrometric analyses.
Machado, Marcos B. +1 more
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Cytotoxic biflavonoids from Selaginella willdenowii
Phytochemistry, 1995Bioactivity-guided fractionation of the leaves of Selaginella willdenowii afforded three known biflavones, 4',7"-di-O-methylamentoflavone, isocryptomerin and 7"-O-methylrobustaflavone, that were significantly cytotoxic against a panel of human cancer cell lines. Non-cytotoxic isolates were also obtained, namely, amentoflavone, bilobetin, robustaflavone
G L, Silva +7 more
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Crystal structure of 2,4′-biflavonoid
Journal of Chemical Crystallography, 1997The X-ray crystal structure of 2,4′-biflavonoid has been determined. Colorless regular prism shaped crystals of C30H22O4 crystallize in the space group $$P\bar 1$$ with cell dimensionsa=11.574(1) A,b=12.235(1) A,c=17.428(1) A, α=108.46(3)o, β=80.08(1)o, γ=103 ...
Chuan-Feng Chen +3 more
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Biflavonoids from Daphne linearifolia Hart.
Phytochemistry Letters, 2012Abstract Two new biflavonoids, 2″-hydroxygenkwanol A ( 1 ) and 4′-methylgenkwanol A ( 2 ), together with fourteen known compounds were isolated from the aerial parts of Daphne linearifolia Hart. Their chemical structures were elucidated by extensive NMR spectral studies, as well as by ESI-MS analysis.
MALAFRONTE, NICOLA +5 more
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