Synthesis and evaluation of novel 1-(1H-1,2,4-triazol-1-yl)-2-(2,4-difluorophenyl)-3-[(4-substitutedphenyl)-piperazin-1-yl]-propan-2-ols as antifungal agents
作者:Qing-Yan Sun、Wan-Nian Zhang、Jian-Ming Xu、Yong-Bing Cao、Qiu-Ye Wu、Da-Zhi Zhang、Chao-Mei Liu、Shi-Chong Yu、Yuan-Ying Jiang
DOI:10.1016/j.ejmech.2006.11.003
日期:2007.8
A series of 1-(1H-1,2,4-triazol-1-yl)-2-(2,4-difluorophenyl)-3-[(4-substitutedphenyl)-piperazin-1-yl]-prop n-2-ols have been designed and synthesized on the basis of the structure-activity relationships and antimycotic mechanism of azole antifungal agents. Their structutes were confirmed by elemental analysis, IR, MS, H-1 NMR and 13 C NMR. Results of preliminary antifungal tests against six human pathogenic fungi (Candida albicans, Candida parapsilosis, Cryptococcus neoformans, Candida tropicalis, inherently fluconazole-resistant Candida krusei, Candida glabrata) in vitro showed that all title compounds exhibited activity against fungi tested to some extent except against C. tropicalis. Compound 5b showed higher activity against C. albicans, C. parapsilosis and C. krusei than fluconazole, and its MIC values were determined to be 0.5 mu g/mL, 1 mu g/mL and 4 mu g/mL, respectively. Compound 5k showed higher activities against Torulopsis glabrata than fluconazole (with the MIC value of 2 mu g/mL). Compounds 5a, 5c, 5f, 5g, 5i exhibited higher activities against C. parapsilosis than fluconazole (with the MIC. values of 2 mu g/mL, 2 mu g/mL, 2 mu g/mL, 1 mu g/mL and 2 mu g/mL, respectively). (c) 2006 Elsevier Masson SAS. All rights reserved.