Molecules (2017)
Update date:2022-08-04
Topics: Characterization Structure-Activity Relationship (SAR) Analysis Chemical Synthesis Literature Review Lead Optimization Design Data Analysis and Reporting Publication and Further Research In Vitro Antimycobacterial Evaluation Cytotoxicity Assessment Perform computational studies to support the experimental findings. This could involve
Semelková, Lucia
Jano?cová, Petra
Fernandes, Carlos
Bouz, Ghada
Jand’Ourek, Ond?ej
Kone?ná, Klára
Paterová, Pavla
Navrátilová, Lucie
Kune?, Ji?í
Dole?al, Martin
Zitko, Jan
Pyrazinamide, the first-line antitubercular drug, has been regarded the basic component of tuberculosis treatment for over sixty years. Researchers have investigated its effect on Mycobacterium tuberculosis for this long time, and as a result, new potential targets of pyrazinamide or its active form, pyrazinoic acid, have been found. We have designed and prepared 3-(phenyl-carbamoyl)pyrazine-2-carboxylic acids as more lipophilic derivatives of pyrazinoic acid. We also prepared methyl and propyl derivatives as prodrugs with further increased lipophilicity. Antimycobacterial, antibacterial and antifungal growth inhibiting activity was investigated in all prepared compounds. 3-[(4-Nitrophenyl)carbamoyl]pyrazine-2-carboxylic acid (16) exerted high antimycobacterial activity against Mycobacterium tuberculosis H37Rv with MIC = 1.56 μg·mL?1 (5 μM). Propyl 3-{[4-(trifluoromethyl)phenyl]carbamoyl}pyrazine-2-carboxylate (18a) showed also high antimycobacterial activity against Mycobacterium tuberculosis H37Rv with MIC = 3.13 μg·mL?1. In vitro cytotoxicity of the active compounds was investigated and no significant cytotoxic effect was observed. Based to structural similarity to known inhibitors of decaprenylphosphoryl-β-D-ribose oxidase, DprE1, we performed molecular docking of the prepared acids to DprE1. These in silico experiments indicate that modification of the linker connecting aromatic parts of molecule does not have any negative influence on the binding.
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