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3-芳基/芳氧甲基-6-芳基-1,2,4-三唑并[3,4-b]-1,3,4-噻二唑衍生物的合成及生物活性
AIM: To synthesize a number of novel heterocyclic compounds and screen for their biological activities. Sixteen title compounds were prepared. METHODS: These novel compounds were prepared by the reaction of 3-aryl/aryloxymethyl-4-amino-5-mercapto-1,2,4-triazoles with aryl carboxylic acids in the presence of phosphorus oxychloride. The structures of these compounds were confirmed by elemental analysis, IR, 1HNMR and MS. The reaction conditions for the synthesis had been investigated. All the compounds were screened for antimicrobial activity against bacteria S.aureus, E.coli and B.subilis. The concentration of the test compounds was 0.002%. The antibacterial activities of the test compounds were compared with those of penicillin and gentamicin. RESULTS: The results display that some of them possess strong biological activities.CONCLUSION: Syntheses of these novel heterocyclic compounds and study on their biological activities are very important and valuable in medicine.
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3-芳基-6-三氯甲基-1,2,4-三唑并[3,4-b]-1,3,4-噻二唑的合成及其质谱研究
目的:合成连有三氯甲基的稠杂环化合物,并研究其波谱(特别是质谱)的特征.方法:3-芳基-4-氨基-5-巯基-1,2,4-三唑与三氯乙酸在三氯氧磷存在条件下关环,合成了3-芳基-6-三氯甲基-1,2,4-三唑并[3,4-b]-1,3,4-噻二唑.结果:这三个新化合物结构经元素分析、红外光谱、氢谱与质谱确证.结论:这些化合物质谱都有分子离子峰.当分子中有三个氯原子时,M+6:M+4:M+2:M=4:11:100:100.
