圆锥菝葜的化学成分研究

Chemical constituents of Smilax bracteata

目的研究圆锥菝葜（Smilax bracteata）的化学成分。方法利用60%乙醇回流提取,大孔吸附树脂和硅胶柱色谱等方法进行分离纯化,根据化合物的光谱数据鉴定结构。结果从圆锥菝葜中分离得到5个化合物,分别鉴定为光叶菝葜苷（Ⅰ）、白藜芦醇（Ⅱ）、落新妇苷（Ⅲ）、新异落新妇苷（Ⅳ）、儿茶素（Ⅴ）。结论化合物Ⅰ~Ⅴ为首次从该种植物分离得到。

Objective To investigate the chemical constituents of the rhizomes of Smilax bracteata.Methods The compounds were extracted with 60% alcohol and isolated by repeated column chromatography on macroporous adsorptive resins SP825 and silica gel.The compounds obtained were identified on the basis of spectral evidence.Results Five compounds Ⅰ-Ⅴwere identified as： 5,7-dihydroxy-chromone-3-O-α-L-rhamnopyranoside（Ⅰ）,resveratrol（Ⅱ）,astilbin（Ⅲ）,neoisoastilbin（Ⅳ）,catechin（Ⅴ）,respectively.Conclusion The compounds Ⅰ-Ⅴ are isolated from Smilax bracteata for the first time.