应用化学 ›› 2015, Vol. 32 ›› Issue (7): 748-758.DOI: 10.11944/j.issn.1000-0518.2015.07.140421

• 研究论文 • 上一篇    下一篇

3-取代-1-(5-芳基-1,3,4-噻二唑-2-基)-1H-吡唑-4-甲醛的合成、晶体结构及抑菌活性

徐畅,安悦(),朱浩天,林越,王日楠   

  1.  辽宁师范大学化学化工学院 辽宁 大连 116029
  • 收稿日期:2014-12-11 接受日期:2015-04-16 出版日期:2015-06-30 发布日期:2015-06-30
  • 通讯作者: 安悦
  • 基金资助:
    辽宁省高等学校科学研究一般项目(L2014421)资助

Synthesis, Crystal Structure and Biological Activities of 3-Substituted-1-(5-aryl-1,3,4-thiadiazol-2-yl)- 1H-pyrazole-4-formaldehyde

XU Chang, AN Yue*, ZHU Haotian, LIN Yue, WANG Rinan   

  1. School of Chemistry and Chemical Engineering,Liaoning Normal University,Dalian,Liaoning 116029,China
  • Received:2014-12-11 Accepted:2015-04-16 Published:2015-06-30 Online:2015-06-30
  • Contact: Yue AN
  • Supported by:
    Supported by the Higher Education Research Program of Education Department of Liaoning Province of China (No.L2014421)

摘要:

以2-氨基-5-取代-1,3,4-噻二唑为起始原料,设计合成16个含1,3,4-噻二唑取代基的中间体4a~4p,进而使其在POCl3及DMF作用下反应得到16个3-取代-1-(5-芳基-1,3,4-噻二唑-2-基)-1H-吡唑-4-甲醛化合物5a~5p,所合成的32个化合物均为新化合物。 采用溶液结晶法获得化合物5a晶体,通过X射线单晶衍射测得该晶体属于三斜晶系,P-1空间群。 借助 IR、1H NMR、元素分析等技术手段对合成的所有化合物结构进行了表征。 利用微量稀释法测试了化合物5a~5p的抑菌活性,结果表明,部分化合物对金黄色葡萄球菌具有抑制作用,在相同条件下化合物5h的抑菌活性最好,抑菌率达到65.30%。

 

关键词: 噻二唑, 吡唑, 合成, 有机单晶, 生物活性

Abstract:

Sixteen title compounds 1,3,4-thiadiazole derivatives 5a~5p and sixteen intermediates 4a~4p were synthesized using 2-amino-5-substituted-1,3,4-thiadiazoles as the starting materials. All of thirty-two compounds are new compounds. The single crystal of compound 5a was obtained by solution crystallization method. X-ray single crystal diffraction analyses show that the crystal is a triclinic crystal system, P-1 space group. The structures of the title compounds and intermediates were characterized by IR, 1H NMR and elemental analyses. The antibacterial activity of compound 5 was evaluated with microdilution method. Compound 5h exhibits higher antibacterial activity to Staphylococcus aureus than the others, of which bacteriostasis rate is up to 65.30%.

Key words: thiadiazole, pyrazole, synthesis, structure, biological activity

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