| Bioactivity | LY2444296 is an orally bioavailable, high-affinity and selective short-acting kappa opioid receptor (KOPR) antagonist, with a Ki value of ∼1 nM. LY2444296 exhibits anti-anxiety like effects[1][2]. | ||||||||||||
| Target | Ki: ~1 nM (KOPR) | ||||||||||||
| In Vivo | LY2444296 displays anti-anxiety like effects in the EPM test[1].LY2444296 (3 mg/kg; i.p.; 30 min before U69,593 administration) prevents behavioral and neuroendocrine effects caused by the reference kappa agonist U69,593 in cocaine-naïve rats[2].LY2444296 reduces anxiety-like and depressive-like behaviors, as well as CORT release, in rats tested after chronic extended access cocaine self-administration, but not in cocaine-naïve rats[2]. Animal Model: | ||||||||||||
| Name | LY2444296 | ||||||||||||
| CAS | 1346133-11-6 | ||||||||||||
| Formula | C24H22F2N2O2 | ||||||||||||
| Molar Mass | 408.44 | ||||||||||||
| Appearance | Solid | ||||||||||||
| Transport | Room temperature in continental US; may vary elsewhere. | ||||||||||||
| Storage |
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| Reference | [1]. Huang P, et al. Two short-acting kappa opioid receptor antagonists (zyklophin and LY2444296) exhibited different behavioral effects from the long-acting antagonist norbinaltorphimine in mouse anxiety tests. Neurosci Lett. 2016 Feb 26;615:15-20. [2]. Valenza M, et al. "Effects of the novel relatively short-acting kappa opioid receptor antagonist LY2444296 in behaviors observed after chronic extended-access cocaine self-administration in rats". Psychopharmacology (Berl). 2017 Aug;234(15):2219-2231. |