高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (2): 222.

• 论文 • 上一篇    下一篇

以ALS为靶标的新型除草剂的分子设计、合成及生物活性研究(Ⅵ)——嘧啶(硫)醚类除草剂的电子结构研究及新型除草剂的分子设计

杨光富, 刘华银, 陆荣健, 杨华铮   

  1. 南开大学元素有机化学研究所, 元素有机化学国家重点实验室, 天津, 300071
  • 收稿日期:1997-01-13 出版日期:1998-02-24 发布日期:1998-02-24
  • 通讯作者: 杨华铮
  • 作者简介:杨光富,男,26岁,博士生.
  • 基金资助:

    国家自然科学基金(批准号:29472056)及天津市21世纪青年基金资助课题.

Design,Synthesis and Biological Activity of Novel Hebicides Targeted ALS(Ⅵ)——The Electronic Structure of Herbicidal Pyrimidinyl(thio)ether Compounds and the Molecular Design of Novel Herbicides

YANG Guang-Fu, LIU Hua-Yin, LU Rong-Jian, YANG Hua-Zheng   

  1. Institute of Elemento organic Chemistry, National Key Laboratory of Elemento organic Chemistry, Nankai University, Tianjin, 300071
  • Received:1997-01-13 Online:1998-02-24 Published:1998-02-24

摘要: 从量子药理学的角度,对嘧啶(硫)醚类化合物的电子结构进行了量子化学研究.结果表明,在高活性分子的嘧啶环周围存在一个大的电负性区域,其除草活性与杂环部分的电荷转移能力有关.在上述结果的基础上,设计并合成了一类结构新颖的除草剂.生测结果表明,所设计的化合物具有很好的除草活性,其中化合物b的pIC50达到7以上.

关键词: 嘧啶(硫)醚类化合物, ALS抑制剂, 结构-活性关系, 量子药理学, 分子设计

Abstract: Pyrimidinyl(thio)ether compounds are a kind of novel class of ALSinhibitors. In view of quantum pharmacology, their electronic structure was firstly investigated by means of quantum chemical calculations. The results revealed that there is a large electronegative region around the pyrimidinyl moiety in the highly active molecule. The herbicidal activity is related to the potency of electric charge translocation of the heterocyclic regions. On the basis of the above results, a novel kind of herbicides was designed and synthesized and was found to exhibit a good herbicidal activity with pIC50 over 7.

Key words: Pyrimidine(thio)ether compound, ALS inhibitor, Structure-activity relationship, Quantum pharmacology, Molecular design

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