波谱学杂志 ›› 2006, Vol. 23 ›› Issue (2): 153-159.

• 4 •    下一篇

新型β-氨基醇及其中间体的合成与波谱研究

  

  1. 郑州大学 化学系, 河南 郑州 450052
  • 收稿日期:2005-10-26 修回日期:2005-12-26 出版日期:2006-06-05 发布日期:2006-06-05
  • 基金资助:

    国家自然科学基金资助项目(20472075).

A New Higher Carbon Sugar-Derived Amino Alcohol and Its Intermediate: Synthesis and  NMR Studies

  1. Department of Chemistry, Zhengzhou University, Zhengzhou 450052, China
  • Received:2005-10-26 Revised:2005-12-26 Online:2006-06-05 Published:2006-06-05
  • Supported by:

    国家自然科学基金资助项目(20472075).

摘要:

由D-木糖出发,经过杂D-A 反应、Henry反应、合成了中间体(1αS,2αR, 3αS,4S,7E,9αR,10αR)-1,2∶9,10-O-二异丙叉基-3-硝甲基-5,6-二脱氧-7-烯-4-氧化-1,4∶7,10-二呋喃-4,8-吡喃糖(化合物1),再经催化氢化,立体选择性地得到了含高碳糖结构片断的β-氨基醇(1αS,2αR, 3αS,4S,7αS,8βR,9αR,10αR)-1,2∶9,10-O-二异丙叉基-3-氨甲基-5,6-二脱氧-4-氧化-1,4∶7,10-二呋喃-4,8-吡喃糖(化合物2), 通过DEPT和1H-1H COSY,HMQC,HMBC等2D NMR 技术对化合物11H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. 同时得到化合物1的还原产物化合物21H,13C NMR归属.

关键词: NMR, 归属, 2D NMR, β-氨基醇, 高碳糖

Abstract:

An intermediate of higher carbon sugar-derived amino alcohol (1αS, 2αR, 3αS, 4S, 7E, 9αR, 10αR)-1, 2∶9, 10-di-O-isopropylidene-3-nitromethyl-5, 6-dideoxy-dec-7-enos-4-ulose-1, 4∶7, 10-difuranose-4, 8-pyranose) (compound 1) was synthesized from D-xylose using hetero-Diels-Alder addition followed by Henry reaction. Compound 2 (1αS, 2αR, 3αS, 4S, 7αS, 8βR, 9αR, 10αR)-1, 2∶9, 10-di-O-isopropylidene-3-aminomethyl-5, 6-dideoxy-dec-4-ulose-1, 4∶7, 10-difuranose-4, 8-pyranose) was synthesized stereoselectively by catalytic hydrogenation of compound 1. Complete assignment of 1H and 13C chemical shifts of compounds 1 and 2 was obtained by 2D NMR techniques, including 1H-1H COSY, HMQC and HMBC. ESI-MS/MS spectra of compound 1 were also measured to study its fragmentation behaviors. The structure of compound 2 was determined.

Key words: NMR, assignment, β-amino alcohols, higher carbon sugar, intermediate

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