from readily-available aryl–alkyl ketones (or alcohols) and different organic azides. Moreover, the reaction used environmentallyfriendlydimethylcarbonate (DMC) as the solvent and air as the oxidant, and H2O was the only by-product, so it provides a green and practical synthetic method for 1,2,3-triazoles.
Benzyltriazoles have been catalytically oxidized by using CuI and tert-butyl hydroperoxide to yield phenyl(1H-1,2,3-triazol-4-yl)methanone derivatives in good yields at room temperature.
Synthesis and evaluation of α-ketotriazoles and α,β-diketotriazoles as inhibitors of Mycobacterium tuberculosis
作者:Christophe Menendez、Frédéric Rodriguez、Ana Luisa de Jesus Lopes Ribeiro、Francesca Zara、Céline Frongia、Valérie Lobjois、Nathalie Saffon、Maria Rosalia Pasca、Christian Lherbet、Michel Baltas
DOI:10.1016/j.ejmech.2013.06.042
日期:2013.11
Two series of alpha-ketotriazole and alpha,beta-diketotriazole derivatives were synthesized and evaluated for antitubercular and cytotoxic activities. Among them, two alpha,beta-diketotriazole compounds, 6b and 9b, exhibited good activities (minimum inhibitory concentration = 7.6 mu M and 6.9 mu M, respectively) on Mycobacterium tuberculosis and multi-drug resistant M. tuberculosis strains and presented no cytotoxicity (IC50 > 50 mu M) on colorectal cancer HCT116 and normal fibroblast GM637H cell lines. These two compounds represent promising leads for further optimization. (C) 2013 Elsevier Masson SAS. All rights reserved.