BTRX-335140 (CYM-53093) is a potent and selective, orally active κ opioid receptor (KOR) antagonist, has antagonist activity for κOR, μOR and δOR with IC50 values of 0.8 nM, 110 nM, and 6500 nM, respectively.BTRX-335140 endows with favorable in vitro ADMET and in vivo pharmacokinetic profiles and medication-like duration of action in rats. BTRX-335140 can distribute well into the CNS. ADMET (absorption, distribution, metabolism, excretion, and toxicity) [1].
[1]. Guerrero M, et al. Design and Synthesis of a Novel and Selective Kappa Opioid Receptor (KOR) Antagonist (BTRX-335140). J Med Chem. 2019 Feb 28;62(4):1761-1780.