节点文献
两头尖的化学成分研究(I)
Studies on the Chemical Constituents of the Rhizoma of Anemone raddeana Regel
【摘要】 采用硅胶柱色谱和高效液相色谱等方法 ,对两头尖的化学成分进行了研究 ,从中分离得到两个化合物 ,经化学及IR ,ESI MS ,1HNMR ,13 CNMR ,DEPT ,HMQC ,HMBC ,GCOSY ,TOCSY等谱学分析鉴定其结构分别为 :3 O α L arabinopyranosyl( 1→ 3 ) α L rhamnopyranosyl( 1→ 2 ) [β D glucopyranosyl( 1→ 4) ] α L arabinopyranosyloleanolicacid 2 8 O α L rhamnopyranosyl( 1→ 4) β D glucopyranosyl( 1→ 6) β D glucopyranoside ( 1) ,3 O β D glucopyranosyl( 1→ 4) β D glucopyranosyl( 1→3 ) α L rhamnopyranosyl( 1→ 2 ) α L arabinopyranosyloleanolicacid 2 8 O α L rhamnopyranosyl( 1→ 4) β D glucopyranosyl( 1→ 6) β D glucopyranoside ( 2 ) ,该两个化合物为新化合物 ,分别命名为 :多被银莲花皂苷 16(Raddeanoside 16)和多被银莲花皂苷 17(Raddeanoside 17) .
【Abstract】 Two new triterpenoid saponins,raddeanoside 16 and raddeanoside 17 were isolated from the ethanolic extract of the rhizome of Anemone raddeana Regel. Their structures were elucidated as 3-O-α-L-arabinopyranosyl(1→3)-α-L-rhamnopyranosyl(1→2) [β-D-glucopyranosyl(1→4)]-α-L-arabinopyranosyl oleanolic acid 28-O-α-L-rhamnopyranosyl(1→4)-β-D-glucopyranosyl (1→6)-β-D-glucopyranoside (1) and 3-O-β-D-glucopyranosyl(1→4)-β-D-glucopyranosyl(1→3)-α-L-rhamnopyranosyl(1→2)-α-L-arabinopyranosyl oleanolic acid 28-O-α-L-rhamnopyranosyl(1→4)-β-D-glucopyranosyl(1→6)-β-D-glucopyranoside (2) by 1D and 2D NMR spectroscopic methods, including DEPT, HMQC, HMBC, GCOSY and TOCSY experiments, respectively.
【Key words】 Anemone raddeana Regel; raddeanoside 16; raddeanoside 17;
- 【文献出处】 化学学报 ,Acta Chimica Sinica , 编辑部邮箱 ,2004年19期
- 【分类号】O629;O657.7
- 【被引频次】31
- 【下载频次】285