25CN-NBOH is a brain-penetrant, highly potent and selective 5-HT2A receptor agonist (human 2A/rat 2C Ki = 1.3/132 nM; human 2A/2C PI turnover EC50 = 2.1/190 nM) with much reduced efficacy toward human 2B & 2C subtypes (Ki ratio: 2C/2A = 52-81 & 2B/2A = 37; Ca2+ mobilization Δlog(Rmax/EC50 ratio: 2C/2A = 30-180 & 2B/2A = 54; 2C/2A PI turnover EC50 ratio = 81-146) and other receptors/transporters/kinases. When administered in mice in vivo (1, 3, 6 mg/kg s.c.), 25CN-NBOH produces hallucinogen-like effects blockable by 5-HT2A antagonist M100907, but not 5-HT2C antagonist RS102221.
Brain-penetrant, highly potent and selective 5-HT2A receptor agonist with good in vitro & in vivo efficacy.
The serotonin (5-HT) 2A receptor is the primary molecular target of serotonergic hallucinogens, which trigger large-scale perturbations of the cortex. Our understanding of how 5-HT2A activation may cause the effects of hallucinogens has been hampered by the receptor unselectivity of
Journal of psychopharmacology (Oxford, England), 34(7), 786-794 (2020-02-13)
Serotonin 2A receptors, the molecular target of psychedelics, are expressed by neuronal and vascular cells, both of which might contribute to brain haemodynamic characteristics for the psychedelic state. Aiming for a systemic understanding of psychedelic vasoactivity, here we investigated the
5-Hydroxytryptamine 2A receptor (5-HT2AR) agonist psychedelics are increasingly recognized as potentially useful treatments of psychiatric disorders, such as obsessive-compulsive disorder, depression, anxiety, and drug dependence. There is limited understanding of the way they exert their therapeutic action, but inhibition of
2-([2-(4-cyano-2,5-dimethoxyphenyl)ethylamino]methyl)phenol (25CN-NBOH) is structurally similar to N-benzyl substituted phenethylamine hallucinogens currently emerging as drugs of abuse. 25CN-NBOH exhibits dramatic selectivity for 5-HT2A receptors in vitro, but has not been behaviorally characterized. 25CN-NBOH was compared to the traditional phenethylamine hallucinogen R(-)-2,5-dimethoxy-4-iodoamphetamine
ACS chemical neuroscience, 5(3), 243-249 (2014-01-09)
N-Benzyl substitution of 5-HT2A receptor agonists of the phenethylamine structural class of psychedelics (such as 4-bromo-2,5-dimethoxyphenethylamine, often referred to as 2C-B) confer a significant increase in binding affinity as well as functional activity of the receptor. We have prepared a
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