波谱学杂志 ›› 1993, Vol. 10 ›› Issue (2): 149-156.

• 研究论文 • 上一篇    下一篇

Nb-甲基四氢海曼和合成中间体的1H NMR及立体化学

杨宪斌1, 郭敏1, 江忝益1, 姚冰1, 彭师奇1, Ekkehard Winterfeldt2   

  1. 1. 北京医科大学天然药物及仿生药物国家重点实验室, 北京 100083;
    2. Institute fur Organische Chemie, Universitat Hannover, D-300 FR Germany
  • 收稿日期:1992-05-04 修回日期:1992-09-25 出版日期:1993-06-05 发布日期:2018-01-20
  • 基金资助:
    国家自然科学基金、国家教委优秀年轻教师基金、德国洪堡基金

THE STUDY ON 1H NMR AND STEREOCHEMISTRY OF Nb-METHYL-TETRAHYDROHARMAN

Yang Xianbin1, Guo Ming1, Jiang Tianyi1, Yao Bing1, Peng Shiqi1, Ekkehard Winterfeldt2   

  1. 1. State Key Lab. of Natural & Biomimctic Drugs, Beijing Medical University, Beijing 100083;
    2. Institute Fur Organische Chem., Uni. Hannover, D-3000 FR Germany
  • Received:1992-05-04 Revised:1992-09-25 Online:1993-06-05 Published:2018-01-20

摘要: 本文提供了Nb-甲基四氢海曼和合成中间体,共十个化合物的1H NMR谱。各谱线的归属依据它们的2D NMR的同核二维相关谱,COSY指定。根据NOE效应,指定了化合物的构型。借助分子模型,讨论了可能的构象。

关键词: Nb-甲基四氢海曼, 立体化学, 2D NMR

Abstract: Using Pictet-Spengler condensation, ammonification, methylation, dehydration and decyanation, Nb-methyl-tetrahydroharman and the synthetic intermediates 1S,S、1S,R、2S,S、2S, R、3S,S、3S,R、4S,S、4S, R were obtained. Their 1H NMR spectra were assigned based on COSY spectroscopy and their configurations of 1-C were determined by NOE experiments. It was shown that for all of the S, S isomers there were NOE relationships between 1-H and 3-H and for all of the S, R isomers NOE relationships between 1-CH3 and 3-H. Based on the results of NOE and the help of Dreiding stereomodels their conformations were discussed.

Key words: Nb-methyl-tetrahydroharman, Stereochemistry, 2D NMR