KNT-127 is a potent and selective δ-opioid receptor agonist effective by systemic administration. KNT-127 shows selectivity for the δ-receptor (Ki 0f 21.3, 0.16, 153 nM for opioid μ-, δ-, and κ-receptors, respectively). KNT-127 increases the release of dopamine and L-glutamate in the striatum, nucleus accumbens and median pre-frontal cortex. Antidepressant-like effects[1][2].
[1]. Nagase H, et al. Design and synthesis of KNT-127, a δ-opioid receptor agonist effective by systemic administration. Bioorg Med Chem Lett. 2010;20(21):6302-6305.
[2]. Tanahashi S, et al. Novel δ1-receptor agonist KNT-127 increases the release of dopamine and L-glutamate in the striatum, nucleus accumbens and median pre-frontal cortex. Neuropharmacology. 2012;62(5-6):2057-2067.