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红光皂甙元及其两个甾体皂甙的NMR研究
NMR COMPLETE ASSIGNMENTS OF HONGGAUNGGENIN AND TWO HONGGUANGGENIN-BASED STEROID SAPONINS
【摘要】 从番麻 (AgaveamericanaL .)发酵的叶汁中分离得到红光皂甙元 (hongguanggenin)、Cantalasaponin 1及一个新的甾体皂苷Agameroside 1 .运用 2DNMR技术 ,包括DQF1 H 1 HCOSY ,HSQC ,HMBC ,HSQC TOCSY ,ROESY等技术 ,首次全归属了 3个甾体化合物的氢和碳的化学位移 ,并总结了红光皂甙元的甙化位移效应 ,从而修正了文献中部分碳信号归属以及甙元的甙化位移效应 .
【Abstract】 Hongguanggenin and two hongguanggenin-based saponins, Cantalasaponin-1 and Agameroside-1 were isolated from fermented leaf of Agave americana L. recently. On the basis of 2D NMR techniques, including DQF 1H- 1H COSY,HSQC,HMBC,HSQC-TOCSY,ROESY and so on, NMR complete assignments of the three compounds and the glycosylation shift effect of hongguanggenin were obtained. This led to the revision of some carbon assignments and glycoylation shift effect in the reference.
【关键词】 红光皂甙元;
Cantalasaponin-1;
Agameroside-1;
番麻(AgaveamericanaL.);
NMR全归属;
甙化位移效应;
【Key words】 Hongguanggenin; Cantalasaponin-1; Agameroside-1; Agave americana L; NMR complete assignments; Glycosylation shift effect;
【Key words】 Hongguanggenin; Cantalasaponin-1; Agameroside-1; Agave americana L; NMR complete assignments; Glycosylation shift effect;
【基金】 中国科学院昆明植物所植物化学开放实验室基金项目
- 【文献出处】 波谱学杂志 ,Chinese Journal of Magnetic Resonance , 编辑部邮箱 ,2001年04期
- 【分类号】O657.2;O629
- 【被引频次】3
- 【下载频次】125