AVN-492是一种高特异性的选择性5-HT6R拮抗剂，对5-HT6R具有皮摩尔级亲和力，Ki为91pM。
CAS：1220646-23-0
分子式：C17H21N5O2S
分子量：359.45
纯度：98%
存储：Store at -20°C

Background:

AVN-492 is a very specific and highly-selective antagonist with picomolar affinity to 5-HT6R (Ki=91 pM).

The affinity of AVN-492 to bind to 5-HT6R (Ki=91 pM) is more than three orders of magnitude higher than that to bind to the only other target, 5-HT2BR, (Ki=170 nM). Thus, AVN-492 displays great 5-HT6R selectivity against all other serotonin receptor subtypes, and is extremely specific against any other receptors such as adrenergic, GABAergic, dopaminergic, histaminergic, etc[1].

In rats, the plasma, brain, and CSF concentrations of the PO administered AVN-492 are dose-dependent. The drug concentration curves for the plasma and brain are of hyperbolic shape and at all doses the brain-plasma ratio is near 11%. The drug concentration in CSF, however, is nearly linearly dependent on the dose, reaching 50% of the plasma level at 10mg/kg. In mice, the plasma and brain concentrations of AVN-492, given IV at a dose of 2 mg/kg, decreased with time but at both time points, 15 min and 60 min, the brain/plasma ratio (mean±SEM) is nearly the same, at 13.2±0.7% and 9.0±1.5%, respectively. This indicates that the steady-state concentration gradient of AVN-492 is established by at least 15 min after the drug administration[1].

[1]. Ivachtchenko AV, et al. AVN-492, A Novel Highly Selective 5-HT6R Antagonist: Preclinical Evaluation. J Alzheimers Dis. 2017;58(4):1043-1063.