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Design, Synthesis, and In Vitro and In Vivo Antifungal Activity of Novel Triazoles Containing Phenylethynyl Pyrazole Side Chains.

ABSTRACT: A series of triazole derivatives containing phenylethynyl pyrazole moiety as side chain were designed, synthesized, and most of them exhibited good in vitro antifungal activities. Especially, compounds 5k and 6c showed excellent in vitro activities against C. albicans (MIC = 0.125, 0.0625 μg/mL), C. neoformans (MIC = 0.125, 0.0625 μg/mL), and A. fumigatus (MIC = 8.0, 4.0 μg/mL). Compound 6c also exerted superior activity to compound 5k and fluconazole in inhibiting hyphae growth of C. albicans and inhibiting drug-resistant strains of C. albicans, and it could reduce fungal burdens in mice kidney at a dosage of 1.0 mg/kg. An in vivo efficacy evaluation indicated that 6c could effectively protect mice models from C. albicans infection at doses of 0.5, 1.0, and 2.0 mg/kg. These results suggested that compound 6c deserves further investigation.

SUBMITTER: Ni T 

PROVIDER: S-EPMC9182106 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature

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Design, Synthesis, and In Vitro and In Vivo Antifungal Activity of Novel Triazoles Containing Phenylethynyl Pyrazole Side Chains.

Ni Tingjunhong T   Ding Zichao Z   Xie Fei F   Hao Yumeng Y   Bao Junhe J   Zhang Jingxiang J   Yu Shichong S   Jiang Yuanying Y   Zhang Dazhi D  

Molecules (Basel, Switzerland) 20220524 11

A series of triazole derivatives containing phenylethynyl pyrazole moiety as side chain were designed, synthesized, and most of them exhibited good in vitro antifungal activities. Especially, compounds <b>5k</b> and <b>6c</b> showed excellent in vitro activities against <i>C. albicans</i> (MIC = 0.125, 0.0625 μg/mL), <i>C. neoformans</i> (MIC = 0.125, 0.0625 μg/mL), and <i>A. fumigatus</i> (MIC = 8.0, 4.0 μg/mL). Compound <b>6c</b> also exerted superior activity to compound <b>5k</b> and flucona  ...[more]

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