Antalarmin hydrochloride

Antalarmin is a selective nonpeptide corticotropin-releasing factor receptor 1 (CRHR1) antagonist with a Ki of 2.7 nM. Antalarmin can pass through the blood–brain barrier[1][2][3].

ChEBI: Antalarmin is a pyrrolopyrimidine that is 7H-pyrrolo[2,3-d]pyrimidin-4-amine which is substituted by methyl groups at positions 2, 5, and 6, by a mesityl group at position 7, and in which the amino substituent at position 4 has been substituted by ethyl and butyl groups. It is an antagonist of corticotropin-releasing factor 1 (CRF-1) receptors (Ki = 1 nM). It has a role as a corticotropin-releasing factor receptor antagonist. It is a pyrrolopyrimidine and a tertiary amino compound.

[1] Ducottet C, et al. Effects of the selective nonpeptide corticotropin-releasing factor receptor 1 antagonist antalarmin in the chronic mild stress model of depression in mice. Prog Neuropsychopharmacol Biol Psychiatry. 2003 Jun;27(4):625-31. DOI:10.1016/S0278-5846(03)00051-4
[2] Dong H, et al. Effects of corticotrophin-releasing factor receptor 1 antagonists on amyloid-β and behavior in Tg2576 mice. Psychopharmacology (Berl). 2014 Dec;231(24):4711-22. DOI:10.1007/s00213-014-3629-8
[3] Zorrilla EP, et al. Urocortin shares the memory modulating effects of corticotropin-releasing factor (CRF): mediation by CRF1 receptors. Brain Res. 2002 Oct 18;952(2):200-10. DOI:10.1016/s0006-8993(02)03345-0