Structure‐Based Design and Synthesis of Piperidinol‐Containing Molecules as New Mycobacterium abscessus Inhibitors

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Ruyck, Jérôme | Dupont, Christian | Lamy, Elodie | Le Moigne, Vincent | Biot, Christophe | Guerardel, Yann | Herrmann, Jean‐louis | Blaise, Mickael | Grassin‐delyle, Stanislas | Kremer, Laurent | Dubar, Faustine

Edité par CCSD ; Wiley -

International audience. Non-tuberculous mycobacterium (NTM) infections, such as those caused by Mycobacterium abscessus, are increasing globally. Due to their intrinsic drug resistance, M. abscessus pulmonary infections are often difficult to cure using standard chemotherapy. We previously demonstrated that a piperidinol derivative, named PIPD1, is an efficient molecule both against M. abscessus and Mycobacterium tuberculosis, the agent of tuberculosis, by targeting the mycolic acid transporter MmpL3. These results prompted us to design and synthesize a series of piperidinol derivatives and to determine the biological activity against M. abscessus. Structure-activity relationship (SAR) studies pointed toward specific sites on the scaffold that can tolerate slight modifications. Overall, these results identified FMD-88 as a new promising active analogue against M. abscessus. Also, we determined the pharmacokinetics properties of PIPD1 and showed that intraperitoneal administration of this compound resulted in promising serum concentration and an elimination half-life of 3.2 hours.

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