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SML2306

Sigma-Aldrich

CTEP

≥98% (HPLC)

Synonym(s):

2-Chloro-4-((2,5-dimethyl-1-(4-(trifluoromethoxy)phenyl)-1H-imidazol-4-yl)ethynyl)pyridine, 2-Chloro-4-[2-[2,5-dimethyl-1-[4-(trifluoromethoxy)phenyl]-1H-imidazol-4-yl]ethynyl]pyridine, RO4956371

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About This Item

Empirical Formula (Hill Notation):
C19H13ClF3N3O
CAS Number:
871362-31-1
Molecular Weight:
391.77
MDL number:
MFCD22665726
UNSPSC Code:
12352200
NACRES:
NA.77

Assay

≥98% (HPLC)

form

powder

color

white to beige

solubility

DMSO: 2 mg/mL, clear

storage temp.

2-8°C

SMILES string

CC1=C(C#CC2=CC(Cl)=NC=C2)N=C(C)N1C3=CC=C(OC(F)(F)F)C=C3

InChI

1S/C19H13ClF3N3O/c1-12-17(8-3-14-9-10-24-18(20)11-14)25-13(2)26(12)15-4-6-16(7-5-15)27-19(21,22)23/h4-7,9-11H,1-2H3

InChI key

GOHCTCOGYKAJLZ-UHFFFAOYSA-N

Biochem/physiol Actions

CTEP (RO4956371) may be used as a therapeutic to reduce hippocampal long-term depression, protein synthesis, and audiogenic seizures in the fragile X mental retardation 1 (Fmr1) knockout mouse.
CTEP is a high-affinity, orally active, potent and selective metabotropic glutamate receptor 5 (mGlu5 or mGluR5) negative allosteric modulator (NAM) and inverse agonist (human/mouse/rat mGlu5 Kd = 1.7/1.8/1.5 nM; IC50 against quisqualate stimulation = 6.4/16.8/8/8 by IP accumulation or 11.4/42/4/6.9 by Ca2+ mobilization using human/mouse/rat mGlu5 HEK293 transfectants; IC50 = 40.1 nM against constitutive IP level in human mGlu5 HEK293) with >1000-fold selectivity over 103 molecular targets, including all known mGluRs. CTEP is an excellent tool compound for long-term in vivo studies (in mice and rats) with good pharmacokinetic properties (B/P ratio = 2.6, oral bioavailability ~100%, T1/2 ~18 hrs post 4.5 mg/kg p.o. in mice) and reported to display 30- to 100-fold higher in vivo potency than MPEP and fenobam in two rodent behavioral models sensitive to antianxiety drugs.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

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Jifang Tao et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 36(47), 11946-11958 (2016-11-25)
Rett syndrome (RTT) is caused by mutations in the gene encoding methyl-CpG binding protein 2 (MECP2), an epigenetic regulator of mRNA transcription. Here, we report a test of the hypothesis of shared pathophysiology of RTT and fragile X, another monogenic
Michael S Sidorov et al.
Proceedings of the National Academy of Sciences of the United States of America, 112(41), 12852-12857 (2015-09-30)
A feature of early postnatal neocortical development is a transient peak in signaling via metabotropic glutamate receptor 5 (mGluR5). In visual cortex, this change coincides with increased sensitivity of excitatory synapses to monocular deprivation (MD). However, loss of visual responsiveness
Stephanie A Barnes et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 35(45), 15073-15081 (2015-11-13)
Previous studies have hypothesized that diverse genetic causes of intellectual disability (ID) and autism spectrum disorders (ASDs) converge on common cellular pathways. Testing this hypothesis requires detailed phenotypic analyses of animal models with genetic mutations that accurately reflect those seen
Aubin Michalon et al.
Biological psychiatry, 75(3), 189-197 (2013-08-06)
Fragile X syndrome (FXS) is the most common genetic cause for intellectual disability. Fmr1 knockout (KO) mice are an established model of FXS. Chronic pharmacological inhibition of metabotropic glutamate receptor 5 (mGlu5) in these mice corrects multiple molecular, physiological, and
Alison Hamilton et al.
Cell reports, 15(9), 1859-1865 (2016-05-24)
Beta-amyloid (Aβ) oligomers contribute to the pathophysiology of Alzheimer disease (AD), and metabotropic glutamate receptor 5 (mGluR5) has been shown to act as a receptor for both Aβ oligomers and cellular prion proteins. Furthermore, the genetic deletion of mGluR5 in
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