波谱学杂志 ›› 2005, Vol. 22 ›› Issue (1): 55-60.

• 研究论文 • 上一篇    下一篇

应用13C NMR-DEPT技术确证红霉素衍生物的结构

  

  1. 中国医学科学院,协和医科大学 药物研究所新药开发室,北京 100050
  • 收稿日期:2004-09-14 修回日期:2004-10-25 出版日期:2005-03-05 发布日期:2005-03-05

Structural Confirmation of a Derivative of 6, 7; 12, 21-Didehydroerythromycin A  by 13C NMR DEPT Technique

  1. Institute of Material Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
  • Received:2004-09-14 Revised:2004-10-25 Online:2005-03-05 Published:2005-03-05

摘要:

由红霉素A衍生物经二氯亚砜消除反应制备12, 21-双键-2′-O, 4″-O-二苯甲酰基-(9S)-9-O, 11-O-异丙基红霉素A 5时,同时得到另一化合物:6, 7:12, 21-二双键-2′-O, 4″-O-二苯甲酰基-(9S)-9-O, 11-O-异丙基红霉素A 6. 应用13C NMR-DEPT技术,确证了6的结构为二双键产物,  双键位于红霉素内酯环6, 7位. 

关键词: 13C NMR, DEPT, 6, 7, 12, 21-二双键-(9S)-9-O-羟基红霉素衍生物, 消去反应

Abstract:

The derivatives of (9S)-12-methyleneerythromycin A,  compound (5) and (6),  were obtained by elimination reaction between thionyl chloride and corresponding 2′-O,  4″-O-dibenzoyl-(9S)-9-O, 11-O-isopropylerythromycin A. The structure of (6) was established using 13C NMRDEPT spectroscopy.

Key words: 13C NMR, DEPT, 6, 7;12, 21-didehydroerythromycin A, elimination

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