For research use only. Not for therapeutic Use.
Lesopitron dihydrochloride is a full and selective 5-HT1A receptor agonist with IC50 of 125 nM in rat hippocampal membranes.
In vitro binding and autoradiographic studies with [3H]8-OH-DPAT and [3H]Lesopitron as radioligands confirm that Lesopitron binds to 5-HT1A receptors in the rat brain with a relatively high affinity (pKi=7.35). As expected of a full agonist at postsynaptic 5-HT1A receptors, Lesopitron (IC50=125 nM) inhibits forskolin-stimulated adenylate cyclase activity in rat hippocampal membranes to the same extent as 5-HT. Lesopitron inhibits the firing of serotoninergic neurons both in vitro (in brainstem slices, IC50=120 nM)[1].
Lesopitron inhibits the firing of serotoninergic neurons both in vivo (in chloral hydrate-anaesthetized rats, ID50=35 μg/kg i.v.)[1]. Lesopitron administered at a dose which induces anxiolytic behaviour in rats (30 μg/kg, i.p.) markedly reduces 5-HT levels (to 45% of the basal value) in cortical perfusates[2].
| Catalog Number | I007646 |
| CAS Number | 132449-89-9 |
| Synonyms | 2-[4-[4-(4-chloropyrazol-1-yl)butyl]piperazin-1-yl]pyrimidine;dihydrochloride |
| Molecular Formula | C15H23Cl3N6 |
| Purity | ≥95% |
| InChI | InChI=1S/C15H21ClN6.2ClH/c16-14-12-19-22(13-14)7-2-1-6-20-8-10-21(11-9-20)15-17-4-3-5-18-15;;/h3-5,12-13H,1-2,6-11H2;2*1H |
| InChIKey | RGDLQJUAYQRGBC-UHFFFAOYSA-N |
| SMILES | C1CN(CCN1CCCCN2C=C(C=N2)Cl)C3=NC=CC=N3.Cl.Cl |
| Reference | [1]. Haj-Dahmane S, et al. Interactions of Lesopitron (E-4424) with central 5-HT1A receptors: in vitro and in vivo studies in the rat. Eur J Pharmacol. 1994 Apr 1;255(1-3):185-96. [2]. Ballarín M, et al. Effect of acute administration of the 5-HT1A receptor ligand, Lesopitron, on rat cortical 5-HT and dopamine turnover. Br J Pharmacol. 1994 Oct;113(2):425-30. |
