Design, synthesis, and structure–activity relationship studies of novel thienopyrrolidone derivatives with strong antifungal activity against Aspergillus fumigates
作者:Xufeng Cao、Yuanyuan Xu、Yongbing Cao、Ruilian Wang、Ran Zhou、Wenjing Chu、Yushe Yang
DOI:10.1016/j.ejmech.2015.08.023
日期:2015.9
In order to further enhance the anti-Aspergillus efficacy of our previously discovered antifungal lead compounds (I), two series of novel azoles featuring thieno[2,3-c]pyrrolidone and thieno[3,2-clpyrroli-done nuclei were designed and evaluated for their in vitro activity on the basis of the binding mode of albaconazole using molecular docking, along with SARs of antifungal triazoles. Most of target compounds exhibited excellent activity against Candida and Cryptococcus spp., with MIC values in the range of 0.0625 mu g/ml to 0.0156 mu g/ml. The thieno[3,2-c]pyrrolidone unit was more suited for improving activity against Aspergillus spp. The most potent compound, 18a, was selected for further development due to its significant in vitro activity against Aspergillus spp. (MIC = 0.25 mu g/ml), as well as its high metabolic stability in human liver microsomes. (C) 2015 Elsevier Masson SAS. All rights reserved.