Rational modification of a lead molecule: Improving the antifungal activity of indole – triazole – amino acid conjugates
作者:Sahil Mishra、Manpreet Kaur、Subhash Chander、Sankaranarayanan Murugesan、Lovedeep Nim、D.S. Arora、Palwinder Singh
DOI:10.1016/j.ejmech.2018.06.039
日期:2018.7
The modification of a molecule that was identified as highly efficacious in the previous studies could considerably improve the biological activity of the resulting compounds. While targeting lanosterol 14-alpha demethylase, the molecular modelling studies convinced that the extension of the phenyl ring of compound 1 deep into the hydrophobic pocket of the enzyme may increase the enzyme ligand interactions and hence improve the anti-fungal profile of the molecules. As a result, the newly designed compounds 2 were synthesized and screened for their anti-microbial properties and these compounds were found to exhibit considerably better activity than the previous molecule 1. Some of the compounds in this series exhibited MIC90 16 mu g mL(-1) and 32 mu g mL(-1) against Candida albicans and Aspergillus niger, respectively as against 312 mu g mL(-1) for compound 1. (C) 2018 Elsevier Masson SAS. All rights reserved.