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Flavonol triglycosides from seeds of Nigella sativa
Abstract Three new flavonoid glycosides quercetin and kaempferol 3-glucosyl(1 → 2)galactosyl(1 → 2)glucoside and quercetin 3-(6-feruloylglucosyl)(1 → 2)galactosyl(1 → 2)glucoside were isolated andExpand
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Flavonoids from Ephedra aphylla
Abstract A new di- C -glucosylflavone, 2″2‴-di- O -β-glucopyranosyl-vicenin II and a new flavonol di- O -glycoside, herbacetin 3- O -α-rhamnopyranoside-8- O -β-glucopyranoside, were isolated from theExpand
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Anti-trypanosomal activity of helenalin and some structurally related sesquiterpene lactones.
The anti-trypanosomal activity of six sesquiterpene lactones (helenalin, mexicanin I, 11alpha,13-dihydrohelenalin acetate, chamissonolide, ivalin and isoalantolactone) against the African TrypanosomaExpand
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Sesquiterpene lactones from Arnica chamissonis less. : VI. Identification and quantitative determination by high-performance liquid and gas chromatography
Abstract Sesquiterpene lactones are pharmacologically interesting compounds of the flowerheads of Arnica chamissonis Less. spp. foliosa (Nutt.) Maguire, officinal as Arnicae Flos (DAB 9 andExpand
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10-acetoxy-9-chloro-8,9-dehydrothymol and further thymol derivatives from Arnica sachalinensis
Abstract The new thymol derivatives, 10-acetoxy-9-chloro-8,9-dehydrothymol, 10-acetoxy-8,9-dehydrothymol, 10-isobutyryloxy-8,9-dehydrothymol and 9-acetoxy-thymol, were isolated from flowerheads ofExpand
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Flavonoid Glycosides and Other Hydrophilic Compounds from Flowers of Heterotheca inuloides.
Ten flavonoid glycosides were identified in flowers of HETEROTHECA INULOIDES ("Mexican Arnica"). Their structures were established by spectral data (UV, (1)H-NMR, (13)C-NMR, mass) and total acidExpand
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New triterpene esters from flowerheads of Arnica lonchophylla.
From the flowerheads of Arnica lonchophylla Greene ssp. lonchophylla Maguire (Asteraceae), a variety of mono-, di- and trihydroxytriterpenes of the oleanane, ursane, lupane and dammarane types wereExpand
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