Fragment-Based Optimized EthR Inhibitors with <i>in Vivo</i> Ethionamide Boosting Activity
作者:Baptiste Villemagne、Arnaud Machelart、Ngoc Chau Tran、Marion Flipo、Martin Moune、Florence Leroux、Catherine Piveteau、Alexandre Wohlkönig、René Wintjens、Xue Li、Ruxandra Gref、Priscille Brodin、Benoit Deprez、Alain R Baulard、Nicolas Willand
DOI:10.1021/acsinfecdis.9b00277
日期:2020.3.13
Killing more than one million people each year, tuberculosis remains the leading cause of death from a single infectious agent. The growing threat of multidrug-resistant strains of Mycobacterium tuberculosis stresses the need for alternative therapies. EthR, a mycobacterial transcriptional regulator, is involved in the control of the bioactivation of the second-line drug ethionamide. We have previously reported the discovery of in vitro nanomolar boosters of ethionamide through fragment-based approaches. In this study, we have further explored the structure-activity and structure-property relationships in this chemical family. By combining structure-based drug design and in vitro evaluation of the compounds, we identified a new oxadiazole compound as the first fragment-based ethionamide booster which proved to be active in vivo, in an acute model of tuberculosis infection.