SR 57227A

• CAT Number: R036317
• CAS Number: 77145-61-0
• Molecular Formula: C10H15Cl2N3
• Molecular Weight: 248.15
• Purity: ≥95%
• Synonyms: 1-(6-chloropyridin-2-yl)piperidin-4-amine;hydrochloride
• InChI: InChI=1S/C10H14ClN3.ClH/c11-9-2-1-3-10(13-9)14-6-4-8(12)5-7-14;/h1-3,8H,4-7,12H2;1H
• InChIKey: FUMINTAAUJUVMP-UHFFFAOYSA-N
• SMILES: C1CN(CCC1N)C2=NC(=CC=C2)Cl.Cl

SR 57227A is a potent, orally active and selective 5-HT3 receptor agonist, with ability to cross the blood brain barrier. SR 57227A has affinities (IC50) varying between 2.8 and 250 nM for 5-HT3 receptor binding sites in rat cortical membranes and on whole NG 108-15 cells or their membranes. Anti-depressant effects[1][2].
SR 57227A binds to 5-HT3 receptors labelled with [3H]S-zacopride with an affinity (Ki) of 115 nM in rat cerebral cortex, 150 nM in NG 108-15 cell membranes and 103 nM in whole NG 108-15 cell[1].
SR 57227A (1-30 mg/kg; i.p.) dose-dependently reduces immobility time in the forced swimming test with an ED50 value for this effect of 14.2 mg/kg[2].
In the forced swimming test, SR 57227A dose-dependently reduces the duration of immobility in rats after i.p. administration. (ED50=7.6 mg/kg i.p. in rats.) SR 57227A is also active in both species after oral administration. In a time-course study in mice, SR 57227A (20 mg/kg p.o.) produces a significant effect lasting 6 hours. SR 57227A (1 and 3 mg/kg i.p.) reduces the elevation of the escape failures in the learned helplessness model in rats by 50-60% on the last two days of the avoidance task, and reduces isolation-induced aggressivity in mice by 50 to 85%, an effect which is antagonised by Zacopride (1 mg/kg i.p.)[2].

Reference

[1]. Poncelet M, et al, Le Fur G. Antidepressant-like effects of SR 57227A, a 5-HT3 receptor agonist, in rodents. J Neural Transm Gen Sect. 1995;102(2):83‐90.
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[2]. Bachy A, et al. SR 57227A: a potent and selective agonist at central and peripheral 5-HT3 receptors in vitro and in vivo. Eur J Pharmacol. 1993;237(2-3):299‐309.
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