Document Report Card

ID: ALA3232803

Journal: J Med Chem

Title: Optimization of potency and pharmacokinetic properties of tetrahydroisoquinoline transient receptor potential melastatin 8 (TRPM8) antagonists.

Authors: Horne DB, Tamayo NA, Bartberger MD, Bo Y, Clarine J, Davis CD, Gore VK, Kaller MR, Lehto SG, Ma VV, Nishimura N, Nguyen TT, Tang P, Wang W, Youngblood BD, Zhang M, Gavva NR, Monenschein H, Norman MH.

Abstract: Transient receptor potential melastatin 8 (TRPM8) is a nonselective cation channel expressed in a subpopulation of sensory neurons in the peripheral nervous system. TRPM8 is the predominant mammalian cold temperature thermosensor and is activated by cold temperatures ranging from 8 to 25 °C and cooling compounds such as menthol or icilin. TRPM8 antagonists are being pursued as potential therapeutics for treatment of pain and bladder disorders. This manuscript outlines new developments in the SAR of a lead series of 1,2,3,4-tetrahydroisoquinoline derivatives with emphasis on strategies to improve pharmacokinetic properties and potency. Selected compounds were profiled in two TRPM8 target-specific in vivo coverage models in rats (the icilin-induced wet dog shake model and the cold pressor test). Compound 45 demonstrated robust efficacy in both pharmacodynamic models with ED90 values <3 mg/kg.

CiteXplore: 24597733

DOI: 10.1021/jm401955h