波谱学杂志 ›› 2004, Vol. 21 ›› Issue (4): 397-403.

• 研究论文 • 上一篇    下一篇

新型C10高碳糖的NMR和-ESI-MS/MS研究

邹大鹏,康建勋,刘宏民,  许卫超,  张慧君,  张碧   

  1. Department of Chemistry, Zhengzhou University, Zhengzhou 450052, China
  • 收稿日期:2004-03-02 修回日期:2004-04-16 出版日期:2004-12-05 发布日期:2004-12-05
  • 基金资助:

    国家自然科学基金资助项目(20272054).

SYNTHESIS OF A NEW C10 HIGHER CARBON SUGAR AND ITS STRUCTURE ELUCIDATION BY NMR AND ESI-MS/MS

 JU Da-Peng, KANG Jian-Xun, LIU Hong-Min, Xu-Wei-Chao,  Zhang-Hui-Jun,  Zhang-Bi   

  • Received:2004-03-02 Revised:2004-04-16 Online:2004-12-05 Published:2004-12-05
  • Supported by:

    国家自然科学基金资助项目(20272054).

摘要:

利用1,2-异丙基-5位苯甲酰基α-D-呋喃型木糖合成了具有潜在抗菌活性的C10高碳糖,检测了该化合物的1H、13C NMR和ESI-MS/MS图谱,确证了该化合物的结构,通过DEPT和1H-1H COSY,HMQC,HMBC等2D NMR技术对其1H和13C NMR数据进行了全归属和较详细的解析并探讨了其ESI-MS/MS质谱裂解规律.

关键词: NMR, 归属, ESI-MS/MS, 高碳糖

Abstract:

PDC is commonly used to oxidate the hydroxy residue in carbohydrates to produce the corresponding ketone. Treatment of 1, 2-isopropylidene-5-O-benzoyl-α-D-xylofuranose with PDC in CH2Cl2 usually yields ketone. It was found in this study, however, a new type higher carbon sugar was obtained when the solvent in the above reaction was changed. The structure of the new higher carbon sugar was elucidated by NMR and ESI-MS/MS. The complete assignment of 1H and 13C NMR chemical shifts of this compound was obtained using 2D NMR techniques, including 1H-1H COSY, HMQC and HMBC.

Key words: NMR, assignment, ESI-MS/MS, higher carbon suga

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