1. GPCR/G Protein
    Neuronal Signaling
  2. Neurokinin Receptor
  3. Talnetant hydrochloride

Talnetant hydrochloride (Synonyms: SB 223412 hydrochloride; SB 223412-A)

Cat. No.: HY-14552A
Handling Instructions

Talnetant Hcl(SB 223412 Hcl) is a potent and selective NK3 receptor antagonist(ki=1.4 nM, hNK-3-CHO); 100-fold selective for the hNK-3 versus hNK-2 receptor, with no affinity for the hNK-1 at concentrations up to 100 uM.

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Talnetant hydrochloride Chemical Structure

Talnetant hydrochloride Chemical Structure

CAS No. : 204519-66-4

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Description

Talnetant Hcl(SB 223412 Hcl) is a potent and selective NK3 receptor antagonist(ki=1.4 nM, hNK-3-CHO); 100-fold selective for the hNK-3 versus hNK-2 receptor, with no affinity for the hNK-1 at concentrations up to 100 uM. IC50 Value: 1.4 nM (hNK-3-CHO binding Ki) [1] Target: NK3 receptor in vitro: In vitro studies demonstrated that 53 is a potent functional antagonist of the hNK-3 receptor (reversal of senktide-induced contractions in rabbit isolated iris sphincter muscles and reversal of NKB-induced Ca2+ mobilization in CHO cells stably expressing the hNK-3 receptor), while in vivo this compound showed oral and intravenous activity in NK-3 receptor-driven models (senktide-induced behavioral responses in mice and senktide-induced miosis in rabbits) [1]. Talnetant has high affinity for recombinant human NK3 receptors (pKi 8.7) and demonstrates selectivity over other neurokinin receptors (pKi NK2 = 6.6 and NK1<4). In native tissue-binding studies, talnetant displayed high affinity for the guinea pig NK3 receptor (pKi 8.5) [3]. in vivo: Rectal barostat tests were performed on 102 healthy volunteers, randomized to receive either oral talnetant 25 or 100 mg or placebo over 14-17 days [2]. Talnetant (3-30 mg/kg i.p.) significantly attenuated senktide-induced 'wet dog shake' behaviors in the guinea pig in a dose-dependent manner. Microdialysis studies demonstrated that acute administration of talnetant (30 mg/kg i.p.) produced significant increases in extracellular dopamine and norepinephrine in the medial prefrontal cortex and attenuated haloperidol-induced increases in nucleus accumbens dopamine levels in the freely moving guinea pigs [3]. Toxicity: Talnetant had no effect on rectal compliance, sensory thresholds or intensity ratings compared with placebo [2]. Clinical trial: Study Of Talnetant Versus Placebo And Risperidone In Schizophrenia. Phase 2

Clinical Trial
Molecular Weight

418.92

Formula

C₂₅H₂₃ClN₂O₂

CAS No.
SMILES

OC1=C(C(N[[email protected]](C2=CC=CC=C2)CC)=O)C3=C(N=C1C4=CC=CC=C4)C=CC=C3.[H]Cl

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Please store the product under the recommended conditions in the Certificate of Analysis.

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Keywords:

TalnetantSB 223412 SB 223412-ASB223412SB-223412Neurokinin ReceptorNK receptorInhibitorinhibitorinhibit

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Talnetant hydrochloride
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HY-14552A
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