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xanthyletin/cancro
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A new xanthyletin-type coumarin from the roots of Peucedanum praeruptorum.
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A new xanthyletin-type coumarin, neopeucedalactone (1), was isolated from the roots of Peucedanum praeruptorum Dunn. Its chemical structure was elucidated based on extensive spectroscopic interpretation. The absolute configurations of xanthyletin-type coumarin were determined by comparing
Isolation of anti-tumor compounds from the stem bark of Zanthoxylum ailanthoides Sieb. & Zucc. by silica gel column and counter-current chromatography.
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Silica gel column chromatography combined with high performance counter-current chromatography (HPCCC) was employed for the separation of potential anti-tumor compounds from a petroleum ether fraction of a crude extract of Zanthoxylum ailanthoides Sieb. & Zucc. This traditional Chinese medicine was
Cytotoxic Properties of the Stem Bark of Citrus reticulata Blanco (Rutaceae).
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The bioassay-guided fractionation of the n-hexane extract of Citrus reticulata Blanco (Rutaceae) stem bark yielded scoparone (1), xanthyletin (2), lupeol (3), β-amyrin (4), stigmasterol (5), β-sitosterol (6) and palmitic acid. The structures of these compounds were determined by comprehensive
Cytotoxic naphthoquinones and plumbagic acid glucosides from Plumbago zeylanica.
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Two plumbagic acid glucosides, 3'-O-beta-glucopyranosyl plumbagic acid and 3'-O-beta-glucopyranosyl plumbagic acid methylester along with five naphthoquinones (plumbagin, chitranone, maritinone, elliptinone and isoshinanolone), and five coumarins (seselin, 5-methoxyseselin, suberosin, xanthyletin
Natural compounds,fraxin and chemicals structurally related to fraxin protect cells from oxidative stress.
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Coumarins comprise a group of natural phenolic compounds found in a variety of plant sources. In view of the established low toxicity, relative cheapness, presence in the diet and occurrence in various herbal remedies of coumarins, it appears prudent to evaluate their properties and applications
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