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Synthesis and antifungal activity of novel triazole compounds containing piperazine moiety.

ABSTRACT: Design and synthesis of triazole library antifungal agents having piperazine side chains, analogues to fluconazole were documented. The synthesis highlighted utilization of the click chemistry on the basis of the active site of the cytochrome P450 14?-demethylase (CYP51). Their structures were characterized by (1)H-NMR, (13)C-NMR, MS and IR. The influences of piperazine moiety on in vitro antifungal activities of all the target compounds were evaluated against eight human pathogenic fungi.

SUBMITTER: Wang Y

PROVIDER: S-EPMC6271785 | biostudies-literature | 2014 Jul

REPOSITORIES: biostudies-literature

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Synthesis and antifungal activity of novel triazole compounds containing piperazine moiety.

Wang Yanwei Y Xu Kehan K Bai Guojing G Huang Lei L Wu Qiuye Q Pan Weihua W Yu Shichong S

Molecules (Basel, Switzerland) 20140731 8

Design and synthesis of triazole library antifungal agents having piperazine side chains, analogues to fluconazole were documented. The synthesis highlighted utilization of the click chemistry on the basis of the active site of the cytochrome P450 14α-demethylase (CYP51). Their structures were characterized by (1)H-NMR, (13)C-NMR, MS and IR. The influences of piperazine moiety on in vitro antifungal activities of all the target compounds were evaluated against eight human pathogenic fungi. ...[more]

PMID: 25090121

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Project description:BackgroundPlant fungi (e.g., Pellicularia sasakii, Gibberella zeae, Fusarium oxysporum, and Cytospora mandshurica and Phytophthora infestans) and bacteria (e.g., Ralstonia solanacearum) are extremely difficult to manage in agricultural production. The high incidence of plant mortality and the lack of effective control methods make P. sasakii and R. solanacearum two of the world's most destructive plant pathogens. Pathogenic fungi and bacteria are responsible for billions of dollars in economic losses worldwide each year. Thus, we designed an active amide structure and synthesized a series of novel amide derivatives containing a triazole moiety to discover new bioactive molecules and pesticides that can act against fungi and bacteria.ResultsA series of amide derivatives containing a triazole moiety were synthesized. All the obtained compounds were characterized through proton and carbon nuclear magnetic resonance spectroscopy, infrared spectroscopy, and elemental analysis. Preliminary antifungal activity test showed that some of the synthesized compounds exhibited moderate antifungal activity against P. sasakii, G. azeae, F. oxysporum, C. mandshurica, and P. infestans at 50 mg/L. Compound 4u displayed more potent antifungal activity against P. sasakii and G. azeae than hymexazol. Preliminary antibacterial activity results showed that some of the synthesized compounds exhibited high anti-bacterial activity against R. solanacearum at 200 mg/L. Compounds 4m and 4q displayed high antibacterial activity against R. solanacearum, with 71% and 65% inhibitory rates, respectively.ConclusionsA series of novel amide derivatives containing 1,2,4-triazole moiety were synthesized through the reaction of intermediate 3 with different acyl chlorides and anhydrous potassium carbonates in anhydrous tetrahydrofuran at 50°C, using 2,4-dichloroacetophenoneas as a starting material. The title compounds exhibited high inhibitory effects against P. sasakii, R. solanacearum, and G. azeae.

Dataset Information

Synthesis and antifungal activity of novel triazole compounds containing piperazine moiety.

Publications

Synthesis and antifungal activity of novel triazole compounds containing piperazine moiety.

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