In a continuing effort to develop highly potent azole antifungal agents, the three-dimensional quantitative structure-activity relationship methods. CoMFA and CoMSIA, were applied using a set of novel azole antifungal compounds. The binding mode of the compounds at the active site of lanosterol 14 alpha-demethylase was further explored using the flexible docking method. Various hydrophobic, van der Waals,pi-pi stacking, and hydrogen bonding interactions were observed between the azoles and the enzyme. Based on results from the molecular modeling, a receptor-based pharmacophore model was established to guide the rational optimization of the azole antifungal agents. Thus, a total of 57 novel azoles were designed and synthesized by a three-step optimization process. In vitro antifungal assay revealed that the antifungal activities of these novel azoles were greatly improved, which confirmed the reliability of the model from molecular modeling.
Design, Synthesis, and Biological Evaluation of 1-[(Biarylmethyl)methylamino]-2-(2,4-difluorophenyl)-3-(1H-1,2,4-triazol-1-yl)propan-2-ols as Potent Antifungal Agents: New Insights into Structure-Activity Relationships
作者:Rémi Guillon、Fabrice Pagniez、Charlotte Rambaud、Carine Picot、Muriel Duflos、Cédric Logé、Patrice Le Pape
DOI:10.1002/cmdc.201100262
日期:2011.10.4
We recently reported the design and synthesis of azole antifungalagents with a focus on modifications to the side chain appended to the propanol group. Herein we have identified a series of new 1‐[(biarylmethyl)methylamino] derivatives with broad‐spectrum antifungal activities against the most prevalent human pathogenic fungi (Candida spp. and Aspergillus fumigatus). Compounds containing a flexible