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小毛茛内酯的合成及抗结核活性的研究

季兴跃+, 李思阳+, 孟帅, 肖春玲, 游雪甫, 李卓荣*   

  1. 中国医学科学院 医药生物技术研究所 有机化学室, 北京 100050
  • 收稿日期:2012-01-13 修回日期:2012-03-20 出版日期:2012-05-15 发布日期:2012-05-15
  • 通讯作者: 李卓荣*

Synthesis and antimycobacterial activity of ternatolide

Xing-Yue Ji+, Si-Yang Li+, Shuai Meng, Chun-Ling Xiao, Xue-Fu You, Zhuo-Rong Li*   

  1. Department of Medicinal Chemistry, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
  • Received:2012-01-13 Revised:2012-03-20 Online:2012-05-15 Published:2012-05-15
  • Contact: Zhuo-Rong Li*

摘要:

小毛茛内酯一直被认为是猫爪草抗结核活性的有效成分。本文通过Yamaguchi酯化反应以32.7%的总收率完成了小毛茛内酯的化学合成制备, 并采用直观快速药敏实验技术评价了其抗结核活性。文献报道, 小毛茛内酯是通过增加外周血淋巴细胞颗粒裂解肽的表达, 间接杀死结核杆菌。本文研究结果显示, 小毛茛内酯在体外对分支杆菌 H37Rv ATCC 27294菌株表现出了微弱的抑制活性,其抗结核杆菌作用可能与细胞因子有关。

关键词: 小毛茛内酯, 合成, 抗结核活性

Abstract:

Ternatolide isolated from Radix Ranuncoli Ternati is considered as the active ingredient against Mycobacterium tuberculosis. Herein, ternatolide was synthesized in four steps in 32.7% overall yield by using Yamaguchi esterification as the key step, and its antimycobacterial activity was investigated in vitro using a rapid direct susceptibility assay. It was reported that ternatolide killed the Mycobacterium tuberculosis possibly by enhancing the expression of GLS in PBLs indirectly, and our results indicated that ternatolide was weakly active against MTB H37Rv ATCC 27294 directly. Therefore, it can be concluded that its mechanism of action was possibly related to the cellular factors.

Key words: Ternatolide, Synthesis, Antimycobacterial activity

中图分类号: 

Supporting: +These authors made equal contributions to this work.
Foundation item: National S&T Major Special Project on Major New Drug Innovation (Grant No. 2012ZX09102-101-001).
*Corresponding author. Tel.: 86-10-63027185