1. GPCR/G Protein
    Neuronal Signaling
  2. Sigma Receptor
  3. S1RA

S1RA (Synonyms: E-52862)

Cat. No.: HY-18099
Handling Instructions

S1RA(E-52862) is a potent and selective sigma-1 receptor(σ1R, Ki=17 nM) antagonist, showed good selectivity against σ2R (Ki > 1000 nM).

For research use only. We do not sell to patients.

S1RA Chemical Structure

S1RA Chemical Structure

CAS No. : 878141-96-9

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Description

S1RA(E-52862) is a potent and selective sigma-1 receptor(σ1R, Ki=17 nM) antagonist, showed good selectivity against σ2R (Ki > 1000 nM). IC50 value: 17 nM (Ki) [1] Target: σ1R in vitro: S1RA behaved as a highly selective σ1 receptor antagonist. It showed high affinity for human (Ki= 17 nM) and guinea pig (Ki= 23.5 nM) σ1 receptors but no significant affinity for the σ2 receptors (Ki > 1000 nM for guinea pig and rat σ2 receptors). Moderate affinity (Ki= 328 nM) and antagonistic activity, with very low potency (IC50= 4700 nM) was found at the human 5-HT2B receptor. S1RA showed no significant affinity (Ki > 1 μM or % inhibition at 1 μM < 50%) for other additional 170 targets (receptors, transporters, ion channels and enzymes) [2]. in vivo: Control (non-operated) and nerve-injured mice received a single or repeated (twice daily for 12 days) i.p. administration of S1RA at 25 mg·kg 1, the same dose used for the assessment of behavioural hypersensitivity in the chronic treatment study. Acute treatment was given on day 12 post-surgery and repeated treatment with S1RA started the day of surgery, as in the behavioural studies [2]. Intrathecal pre-treatment with idazoxan prevented the systemic S1RA antinociceptive effect, suggesting that the S1RA antinociception depends on the activation of spinal α2 -adrenoceptors which, in turn, could induce an inhibition of formalin-evoked glutamate release. When administered locally, intrathecal S1RA inhibited only the flinching behavior, whereas intracerebroventricularly or intraplantarly injected also attenuated the lifting/licking behavior [3].

Molecular Weight

337.42

Formula

C₂₀H₂₃N₃O₂

CAS No.
SMILES

CC1=CC(OCCN2CCOCC2)=NN1C3=CC(C=CC=C4)=C4C=C3

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Keywords:

S1RAE-52862E52862E 52862Sigma ReceptorInhibitorinhibitorinhibit

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