思茅藤的化学成分研究  

STUDY ON CONSTITUENTS FROM EPIGYNUM AURITUM

作　　者：金岐端[1] 木全章[1] 

机构地区：[1]中国科学院昆明植物研究所植物化学开放研究实验室,昆明650204

出　　处：《天然产物研究与开发》1990年第3期15-18,共4页Natural Product Research and Development

摘　　要：从思茅藤(Epigynum auritum (schneid.)Tsiang et P.T.Li)的茎皮中分离到一个新的化合物,命名为思茅藤甙(Epigcoside)Ⅰ和已知化合物Ⅱ。通过光谱分析和化学反应证明,其结构为Ⅰ(+)—儿茶素-3-O-α-D-葡萄吡喃糖(1→6)-β-D葡萄吡喃糖甙((+)-catchin—3-O-α-D-glucopyranosyl-(1→6)-β—D-glucopyranoside;Ⅱβ-谷甾醇β-D-葡萄糖甙(β-sitosterol-β-D-glucoside)。A new glycoside, Epigeoside, and known compound β-sitosterol-β-D-glucopyranoside were isolated from the rhizomes of Epigynum auritum (Schncid.) Tsiang et p. T. Li(Apocynaceae). The structure of Epigeoside has been deduced on the basis of spectral analysis and chemical reactions as (+) -catchin-3-0-α-D-glucopyranosyl- (1→6) -β-D-lucopyranosidc. Acid hydrolysis of Epigeoside with 2N H_2SO_4 to afford an aglycone, which was identified by comparison with (+) -eatchin and glucose as a sugar, which was identified by gas-liquid chromatograph(GLC) comparing with authentic sample of gluvose-TMS derivative.

关 键 词：夹竹桃科 思茅藤 化学成分 

分 类 号：Q949.776.5[生物学—植物学]