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选择性封闭卡那霉素A耐药酶羟基衍生物的合成

陈颖, 孟祥豹, 陈桂辉, 潘攀, 李中军*   

  1. 北京大学药学院 天然药物及仿生药物国家重点实验室; 化学生物学系, 北京 100083

  • 收稿日期:2008-01-22 修回日期:2008-05-10 出版日期:2008-06-15 发布日期:2008-06-15
  • 通讯作者: 李中军*

Synthesis of kanamycin A derivatives by regioselective masking drug resistant enzymes targeting hydroxyl groups

Ying Chen, Xiang-Bao Meng, Gui-Hui Chen, Pan Pan, Zhong-Jun Li*   

  1. The State Key Laboratory of Natural and Biomimetic drugs;
    Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing 100083, China
  • Received:2008-01-22 Revised:2008-05-10 Online:2008-06-15 Published:2008-06-15
  • Contact: Zhong-Jun Li*

摘要:

为寻找能抵抗耐药酶作用的氨基糖苷类抗生素, 本文对卡那霉素A3'-OH, 4'-OH 2''-OH位点进行了修饰。合成路线中的关键中间体为引入双苄叉保护基的卡那霉素A衍生物。目标羟基通过苄基化, 甲基化和烯丙基化的方法进行修饰。最后通过多步反应脱保护, 得到目标产物。活性结果显示, 目标产物对敏感菌和耐药菌未显示出良好的抗菌活性。

关键词: 氨基糖苷, 氨基糖苷, 氨基糖苷, 卡那霉素A衍生物, 卡那霉素A衍生物, 卡那霉素A衍生物, 耐药酶, 耐药酶, 耐药酶, 区域选择性, 区域选择性, 区域选择性, , ,

Abstract:

The 3'-OH, 4'-OH and 2''-OH of kanamycin A were modified in search of new aminoglycosides to overcome resistant enzymes, ANTs and APHs. The key intermediate was a dibenzylidene-protected derivative of kanamycin A. The aimed sites were masked by benzyl, methyl and allyl groups. Multi-step reactions gave the desired aminoglycoside derivatives but showed less antibiotic activity than kanamycin A.

Key words: Aminoglycoisdes, Aminoglycoisdes, Kanamycin A derivatives, Kanamycin A derivatives, Resistant enzyme, Resistant enzyme, Regioselectivity, Regioselectivity, ,

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Supporting: This project was supported by the National Basic Research Program (973 Program, Grant No. 2004CB518904).