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含1,3,4-噻二唑环吡唑并[3,4-d]嘧啶类化合物的合成及生物活性
引用本文:宋新建,邵宇,段正超,李世荣. 含1,3,4-噻二唑环吡唑并[3,4-d]嘧啶类化合物的合成及生物活性[J]. 有机化学, 2012, 0(4): 755-759
作者姓名:宋新建  邵宇  段正超  李世荣
作者单位:1. 湖北民族学院生物资源保护与利用湖北省重点实验室 恩施445000;湖北民族学院化学与环境工程学院 恩施445000
2. 湖北民族学院化学与环境工程学院 恩施445000
3. 湖北民族学院生物资源保护与利用湖北省重点实验室 恩施445000
基金项目:湖北省自然科学基金,湖北省教育厅重点
摘    要:通过5-氨基-4-氰基-1-苯基吡唑与甲酸发生环合、再经氯化和芳香族亲核取代反应,合成了12种新的含1,3,4-噻二唑环吡唑并[3,4-d]嘧啶类化合物.目标化合物的结构经红外光谱、核磁共振氢谱、质谱和元素分析方法予以确认.初步的生物活性测定试验表明,在50 mg/L浓度下,大部分目标化合物对小麦纹枯病菌(Rhizoctonia cerealis)表现出较好的杀菌活性,其中化合物5b,5d和5j的抑菌率超过90%.

关 键 词:吡唑并[3,4-d]嘧啶  1,3,4-噻二唑  合成  杀菌活性

Synthesis and Biological Activity of Pyrazolo[3,4-d]pyrimidine Derivatives Containing 1,3,4-Thiadiazole
Song, Xinjian , Shao, Yu , Duan, Zhengcao , Li, Shirong. Synthesis and Biological Activity of Pyrazolo[3,4-d]pyrimidine Derivatives Containing 1,3,4-Thiadiazole[J]. Chinese Journal of Organic Chemistry, 2012, 0(4): 755-759
Authors:Song   Xinjian    Shao   Yu    Duan   Zhengcao    Li   Shirong
Affiliation:Song,Xinjian a,b Shao,Yu b Duan,Zhengcao b Li,Shirong a(a Key Laboratory of Biological Resources Protection and Utilization of Hubei Province,Hubei University for Nationalities,Enshi 445000)(b School of Chemical and Environmental Engineering,Hubei University for Nationalities,Enshi 445000)
Abstract:Twelve novel pyrazolo[3,4-d]pyrimidine derivatives containing a 1,3,4-thiadiazole group were synthesized through cyclization of 5-amino-4-cyano-1-phenylpyrazole with formic acid,followed by chloridization and SNAr reaction.The structures of all these title compounds were confirmed by IR,1H NMR,MS techniques and elemental analysis.The preliminary bioassay showed that most of the title compounds exhibit relatively good fungicidal activities against Rhizoctonia cerealis at the concentration of 50 mg/L,especially the inhibitory rates of compounds 5b,5d and 5j reach above 90%.
Keywords:pyrazolo[3,4-d]pyrimidine  1,3,4-thiadiazole  synthesis  fungicidal activity
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