换一批摘要Six compounds have been isolated from the leaves of Pyrenacantha staudtii,two of which are new compounds.The new compounds have been characterized as kaempherol 3-O-β-rhamnopyranosyl (1→6)β-D-glucopyranoside (1) and 4-β-glucopyranosyl-(2-furyl)-5-methy-1,2-glucopyranoside phenylmethanone (2).The known compounds are 3-pyridinecarboxylic acid (3),β-sitosterol (4),sitosterol 3-O-β-glucopyranoside (5) and taraxerol (6).Their structures were determined by spectroscopic and chemical evidences.The two new compounds together with 3-pyridinecarboxylic acid showed significant in vitro xanthine oxidase inhibitory activity.To the best of our knowledge,this is the first report of these compounds from this plant.
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关键词
flavonoid glycosidephenyl methanonexanthine oxidasePyrenacantha staudtiiIcacinaceaeCLC numberR284.1 Document codeA Article
分类号
R284.1（中药学）
栏目名称
DOI
10.3321/j.issn:0513-4870.2009.04.012
发布时间
2009-05-15（万方平台首次上网日期，不代表论文的发表时间）
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