sr-57227a

**SR-57227A** is a potent and selective small molecule agonist of the 5-HT3 (serotonin type 3) receptor, with high selectivity over other serotonin receptor subtypes and notable ability to cross the blood-brain barrier[1][6]. It binds with high affinity to 5-HT3 receptor binding sites in central and peripheral nervous system tissues and is active both in vitro and in vivo[1][6]. The primary mechanism of action is *5-HT3 receptor agonism*, which leads to stimulation of ionic currents in neurons expressing these receptors and produces effects such as the Bezold-Jarisch reflex and inhibition of neuronal firing in rat cortical neurons[1]. SR-57227A has demonstrated pharmacological activity in animal models, including antidepressant-like effects, attenuation of isolation-induced aggression, and anticonvulsant effects that may be mediated via modulation of GABAergic activity in the hippocampus[2][3][5]. The compound was investigated primarily for neuropsychiatric indications including major depressive disorder[2][7].

Other names

4-amino-(6-chloro-2-pyridyl)-1-piperidine hydrochlorideSR 57227SR57227SR-57227