Development of 3,5-Dinitrophenyl-Containing 1,2,4-Triazoles and Their Trifluoromethyl Analogues as Highly Efficient Antitubercular Agents Inhibiting Decaprenylphosphoryl-β-d-ribofuranose 2'-Oxidase
Jazyk angličtina Země Spojené státy americké Médium print-electronic
Typ dokumentu časopisecké články, práce podpořená grantem
- MeSH
- alkoholoxidoreduktasy antagonisté a inhibitory metabolismus MeSH
- antituberkulotika chemická syntéza chemie farmakologie MeSH
- bakteriální proteiny antagonisté a inhibitory metabolismus MeSH
- dinitrobenzeny chemická syntéza chemie farmakologie MeSH
- fluorované uhlovodíky chemická syntéza chemie farmakologie MeSH
- molekulární modely MeSH
- molekulární struktura MeSH
- Mycobacterium tuberculosis účinky léků enzymologie MeSH
- triazoly chemická syntéza chemie farmakologie MeSH
- vyvíjení léků * MeSH
- vztah mezi dávkou a účinkem léčiva MeSH
- vztahy mezi strukturou a aktivitou MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Názvy látek
- alkoholoxidoreduktasy MeSH
- antituberkulotika MeSH
- bakteriální proteiny MeSH
- dinitrobenzeny MeSH
- DprE1 protein, Mycobacterium tuberculosis MeSH Prohlížeč
- fluorované uhlovodíky MeSH
- triazoly MeSH
We report herein the discovery of 3,5-dinitrophenyl 1,2,4-triazoles with excellent and selective antimycobacterial activities against Mycobacterium tuberculosis strains, including clinically isolated multidrug-resistant strains. Thorough structure-activity relationship studies of 3,5-dinitrophenyl-containing 1,2,4-triazoles and their trifluoromethyl analogues revealed the key role of the position of the 3,5-dinitrophenyl fragment in the antitubercular efficiency. Among the prepared compounds, the highest in vitro antimycobacterial activities against M. tuberculosis H37Rv and against seven clinically isolated multidrug-resistant strains of M. tuberculosis were found with S-substituted 4-alkyl-5-(3,5-dinitrophenyl)-4H-1,2,4-triazole-3-thiols and their 3-nitro-5-(trifluoromethyl)phenyl analogues. The minimum inhibitory concentrations of these compounds reached 0.03 μM, which is superior to all the current first-line anti-tuberculosis drugs. Furthermore, almost all compounds with excellent antimycobacterial activities exhibited very low in vitro cytotoxicities against two proliferating mammalian cell lines. The docking study indicated that these compounds acted as the inhibitors of decaprenylphosphoryl-β-d-ribofuranose 2'-oxidase enzyme, which was experimentally confirmed by two independent radiolabeling experiments.
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