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ID: ALA4052739

Journal: Bioorg Med Chem Lett

Title: Discovery of a biarylamide series of potent, state-dependent NaV1.7 inhibitors.

Authors: Schenkel LB, DiMauro EF, Nguyen HN, Chakka N, Du B, Foti RS, Guzman-Perez A, Jarosh M, La DS, Ligutti J, Milgram BC, Moyer BD, Peterson EA, Roberts J, Yu VL, Weiss MM.

Abstract: The NaV1.7 ion channel has garnered considerable attention as a target for the treatment of pain. Herein we detail the discovery and structure-activity relationships of a novel series of biaryl amides. Optimization led to the identification of several state-dependent, potent and metabolically stable inhibitors which demonstrated promising levels of selectivity over NaV1.5 and good rat pharmacokinetics. Compound 18, which demonstrated preferential inhibition of a slow inactivated state of NaV1.7, was advanced into a rat formalin study where upon reaching unbound drug levels several fold over the rat NaV1.7 IC50 it failed to demonstrate a robust reduction in nociceptive behavior.

CiteXplore: 28684121

DOI: 10.1016/j.bmcl.2017.06.054