| 通光藤甙F,G,H和I结构 |
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| 引用本文： | 陈纪军,张壮鑫,周俊.通光藤甙F,G,H和I结构[J].云南植物研究,1999,21(3):369-377. |
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| 作者姓名： | 陈纪军 张壮鑫 周俊 |
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| 作者单位： | 中国科学院昆明植物研究所,昆明,650204 |
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| 基金项目： | 云南省应用基础基金!(96C0 88Q)，中国科学院昆明植物所植物化学开放研究室资助项目 |
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| 摘 要： | 从通光藤(Marsdeniatenacissima)的茎中分离得到4个新的C21甾体甙———通光藤甙F(3),G(4),H(5)和I(6),以及2个已知化合物通光藤甙A(1)和B(2)。根据光谱数据和化学方法推定了其结构。同时,通过COLOC谱和二维核磁共振谱指定了这些化合物中甙元上11和12位的酯基确切连接位置。
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| 关 键 词： | 萝科 通光藤 C_(21)甾体甙 通光藤甙F G H和I |
New C21 Steroidal Glycosides from Marsdenia tenacissima |
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| CHEN Ji-Jun,ZHANG Zhuang-Xin,ZHOU Jun.New C21 Steroidal Glycosides from Marsdenia tenacissima[J].Acta Botanica Yunnanica,1999,21(3):369-377. |
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| Authors: | CHEN Ji-Jun ZHANG Zhuang-Xin ZHOU Jun |
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| Abstract: | From the stem of Marsdenia tenacissima (Roxb) Wight et Arn., four new steroidal glycosides designated tenacissoside F (3), G (4), H (5) and I (6) possessing the same sugar chain: 6-deoxy-3-O-methyl-β-D-allopyanosyl-(1→4)-β -D-oleandropyranosose, along with two known tenacissoside A (1) and B (2), were isolated and characterized by means of spectroscopic and chemical evidence. Furthermore, diester groups at C-11 and C-12 of aglycone of these glycosides had been assigned by COLOC and 2D NMR techniques. |
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| Keywords: | G Asclepiadaceae Marsdenia Tenacissima C21 steroidal glycosides Tenacissosides F G H and I |
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