New insight into structure-activity of furan-based salicylate synthase (MbtI) inhibitors as potential antitubercular agents

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Chiarelli, Laurent | Mori, Matteo | Beretta, Giangiacomo | Gelain, Arianna | Pini, Elena | Sammartino, Josè Camilla | Stelitano, Giovanni | Barlocco, Daniela | Costantino, Luca | Lapillo, Margherita | Poli, Giulio | Caligiuri, Isabella | Rizzolio, Flavio | Bellinzoni, Marco | Tuccinardi, Tiziano | Villa, Stefania | Meneghetti, Fiorella

Edité par CCSD ; Informa Healthcare -

International audience. Starting from the analysis of the hypothetical binding mode of our previous furan-based hit (I), we successfully achieved our objective to replace the nitro moiety, leading to the disclosure of a new lead exhibiting a strong activity against MbtI. Our best candidate 1 h displayed a Ki of 8.8 µM and its antimycobacterial activity (MIC99 = 250 µM) is conceivably related to mycobactin biosynthesis inhibition. These results support the hypothesis that 5-phenylfuran-2-carboxylic derivatives are a promising class of MbtI inhibitors.

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