104391-26-6

104391-26-6 structure

Name: CGP 25454A
Chemical Name: CGP 25454A
CAS Number: 104391-26-6
Molecular Formula: C₁₅H₂₁Cl₂N₃O₂
Molecular Weight: 346.252
Catalog: Signaling Pathways GPCR/G Protein Dopamine Receptor
Create Date: 2018-06-21 08:45:21
Modify Date: 2024-01-13 11:56:01
CGP 25454A is a novel and selective presynaptic dopamine autoreceptor antagonist. In vitro: CGP 25454A increase the field-stimulated [3H]- and [14C]-overflow from rat striatal slices preloaded with [3H]dopamine and [14C]choline, indicating that CGP 25454A is able to enhance the release of both dopamine (DA) and acetylcholine (ACh). However, CGP 25454A is 12.9 times more potent in increasing, by 1/6 of the apparent maximal increase, the release of [3H]DA than that of [14C]ACh.In vivo: CGP 25454A increase [3H]spiperone binding to receptors of the D2 family in rat striatum by 90-110% (ED50: 13 mg/kg i.p.). As a similar increase in [3H]spiperone binding is found with a variety of agents which increase the synaptic concentration of endogenous DA, the effect of CGP 25454A most probably reflects an enhanced release of DA under in vivo conditions. At 30-100 mg/kg, CGP 25454A inhibit [3H]spiperone binding in the pituitary of the same animals as a result of a blockade of postsynaptic DA receptors.

Name	CGP 25454A
Synonyms	Benzamide, 4-chloro-5-cyano-N-[2-(diethylamino)ethyl]-2-methoxy-, hydrochloride (1:1) 4-Chloro-5-cyano-N-[2-(diethylamino)ethyl]-2-methoxybenzamide hydrochloride (1:1)

Description	CGP 25454A is a novel and selective presynaptic dopamine autoreceptor antagonist. In vitro: CGP 25454A increase the field-stimulated [3H]- and [14C]-overflow from rat striatal slices preloaded with [3H]dopamine and [14C]choline, indicating that CGP 25454A is able to enhance the release of both dopamine (DA) and acetylcholine (ACh). However, CGP 25454A is 12.9 times more potent in increasing, by 1/6 of the apparent maximal increase, the release of [3H]DA than that of [14C]ACh.In vivo: CGP 25454A increase [3H]spiperone binding to receptors of the D2 family in rat striatum by 90-110% (ED50: 13 mg/kg i.p.). As a similar increase in [3H]spiperone binding is found with a variety of agents which increase the synaptic concentration of endogenous DA, the effect of CGP 25454A most probably reflects an enhanced release of DA under in vivo conditions. At 30-100 mg/kg, CGP 25454A inhibit [3H]spiperone binding in the pituitary of the same animals as a result of a blockade of postsynaptic DA receptors.
Related Catalog	Signaling Pathways >> GPCR/G Protein >> Dopamine Receptor Signaling Pathways >> Neuronal Signaling >> Dopamine Receptor Research Areas >> Neurological Disease
References	[1]. Bischoff S et al. CGP 25454A, a novel and selective presynaptic dopamine autoreceptor antagonist. Naunyn Schmiedebergs Arch Pharmacol. 1994 Sep;350(3):230-8.