SIB-1893

Last updated
SIB-1893
SIB-1893.svg
Identifiers
  • (E)-2-methyl-6-(2-phenylethenyl)pyridine
CAS Number
PubChem CID
ChemSpider
UNII
ChEMBL
Chemical and physical data
Formula C14H13N
Molar mass 195.265 g·mol−1
3D model (JSmol)
  • c1ccccc1\C=C\c(nc2C)ccc2
  • InChI=1S/C14H13N/c1-12-6-5-9-14(15-12)11-10-13-7-3-2-4-8-13/h2-11H,1H3/b11-10+ X mark.svgN
  • Key:SISOFUCTXZKSOQ-ZHACJKMWSA-N X mark.svgN
 X mark.svgNYes check.svgY  (what is this?)    (verify)

SIB-1893 is a drug used in scientific research which was one of the first compounds developed that acts as a selective antagonist for the metabotropic glutamate receptor subtype mGluR5. [1] It has anticonvulsant and neuroprotective effects, [2] and reduces glutamate release. [3] It has also been found to act as a positive allosteric modulator of mGluR4. [4]

Related Research Articles

<span class="mw-page-title-main">Metabotropic glutamate receptor</span> Type of glutamate receptor

The metabotropic glutamate receptors, or mGluRs, are a type of glutamate receptor that are active through an indirect metabotropic process. They are members of the group C family of G-protein-coupled receptors, or GPCRs. Like all glutamate receptors, mGluRs bind with glutamate, an amino acid that functions as an excitatory neurotransmitter.

<span class="mw-page-title-main">Fenobam</span> Chemical compound

Fenobam is an imidazole derivative developed by McNeil Laboratories in the late 1970s as a novel anxiolytic drug with an at-the-time-unidentified molecular target in the brain. Subsequently, it was determined that fenobam acts as a potent and selective negative allosteric modulator of the metabotropic glutamate receptor subtype mGluR5, and it has been used as a lead compound for the development of a range of newer mGluR5 antagonists.

<span class="mw-page-title-main">Metabotropic glutamate receptor 1</span> Mammalian protein found in Homo sapiens

The glutamate receptor, metabotropic 1, also known as GRM1, is a human gene which encodes the metabotropic glutamate receptor 1 (mGluR1) protein.

<span class="mw-page-title-main">Metabotropic glutamate receptor 2</span> Mammalian protein found in Homo sapiens

Metabotropic glutamate receptor 2 (mGluR2) is a protein that, in humans, is encoded by the GRM2 gene. mGluR2 is a G protein-coupled receptor (GPCR) that couples with the Gi alpha subunit. The receptor functions as an autoreceptor for glutamate, that upon activation, inhibits the emptying of vesicular contents at the presynaptic terminal of glutamatergic neurons.

<span class="mw-page-title-main">Metabotropic glutamate receptor 3</span> Mammalian protein found in Homo sapiens

Metabotropic glutamate receptor 3 (mGluR3) is an inhibitory Gi/G0-coupled G-protein coupled receptor (GPCR) generally localized to presynaptic sites of neurons in classical circuits. However, in higher cortical circuits in primates, mGluR3 are localized post-synaptically, where they strengthen rather than weaken synaptic connectivity. In humans, mGluR3 is encoded by the GRM3 gene. Deficits in mGluR3 signaling have been linked to impaired cognition in humans, and to increased risk of schizophrenia, consistent with their expanding role in cortical evolution.

<span class="mw-page-title-main">Metabotropic glutamate receptor 4</span> Mammalian protein found in Homo sapiens

Metabotropic glutamate receptor 4 is a protein that in humans is encoded by the GRM4 gene.

<span class="mw-page-title-main">Metabotropic glutamate receptor 5</span> Mammalian protein found in Homo sapiens

Metabotropic glutamate receptor 5 is an excitatory Gq-coupled G protein-coupled receptor predominantly expressed on the postsynaptic sites of neurons. In humans, it is encoded by the GRM5 gene.

<span class="mw-page-title-main">Metabotropic glutamate receptor 7</span> Mammalian protein found in Homo sapiens

Metabotropic glutamate receptor 7 is a protein that in humans is encoded by the GRM7 gene.

<span class="mw-page-title-main">LY-341495</span> Chemical compound

LY-341495 is a research drug developed by the pharmaceutical company Eli Lilly, which acts as a potent and selective orthosteric antagonist for the group II metabotropic glutamate receptors (mGluR2/3).

<span class="mw-page-title-main">Biphenylindanone A</span> Chemical compound

Biphenylindanone A is a research agent which acts as a potent and selective positive allosteric modulator for the group II metabotropic glutamate receptor subtype mGluR2.

<span class="mw-page-title-main">2-Methyl-6-(phenylethynyl)pyridine</span> Chemical compound

2-Methyl-6-(phenylethynyl)pyridine (MPEP) is a research drug which was one of the first compounds found to act as a selective antagonist for the metabotropic glutamate receptor subtype mGluR5. After being originally patented as a liquid crystal for LCDs, it was developed by the pharmaceutical company Novartis in the late 1990s. It was found to produce neuroprotective effects following acute brain injury in animal studies, although it was unclear whether these results were purely from mGluR5 blockade as it also acts as a weak NMDA antagonist, and as a positive allosteric modulator of another subtype mGlu4, and there is also evidence for a functional interaction between mGluR5 and NMDA receptors in the same populations of neurons. It was also shown to produce antidepressant and anxiolytic effects in animals, and to reduce the effects of morphine withdrawal, most likely due to direct interaction between mGluR5 and the μ-opioid receptor.

<span class="mw-page-title-main">MTEP</span> Chemical compound

3-( ethynyl)pyridine (MTEP) is a research drug that was developed by Merck & Co. as a selective allosteric antagonist of the metabotropic glutamate receptor subtype mGluR5. Identified through structure-activity relationship studies on an older mGluR5 antagonist MPEP, MTEP has subsequently itself acted as a lead compound for newer and even more improved drugs.

<span class="mw-page-title-main">MMPIP</span>

MMPIP is a drug used in scientific research that acts as a selective antagonist for the metabotropic glutamate receptor subtype mGluR7. This receptor subtype appears to be involved in the downstream response to cocaine in the brain.

<span class="mw-page-title-main">ADX-47273</span>

ADX-47273 is a research pharmaceutical developed by Addex Therapeutics which acts as a positive allosteric modulator (PAM) selective for the metabotropic glutamate receptor subtype mGluR5. It has nootropic and antipsychotic effects in animal studies, and has been used as a lead compound to develop improved derivatives.

<span class="mw-page-title-main">SIB-1757</span> Chemical compound

SIB-1757 is a drug used in scientific research which was one of the first compounds developed that acts as a selective antagonist for the metabotropic glutamate receptor subtype mGluR5. It has anti-hyperalgesia effects in animals. SIB-1757 along with other mGluR5 antagonists has been shown to have neuroprotective and hepatoprotective effects, and it is also used to study the role of the mGluR5 receptor in brain development.

<span class="mw-page-title-main">CDPPB</span>

CDPPB is a drug used in scientific research which acts as a positive allosteric modulator selective for the metabotropic glutamate receptor subtype mGluR5. It has antipsychotic effects in animal models, and mGluR5 modulators are under investigation as potential drugs for the treatment of schizophrenia, as well as other applications.

<span class="mw-page-title-main">LY-487,379</span> Chemical compound

LY-487,379 is a drug used in scientific research that acts as a selective positive allosteric modulator for the metabotropic glutamate receptor group II subtype mGluR2. It is used to study the structure and function of this receptor subtype, and LY-487,379 along with various other mGluR2/3 agonists and positive modulators are being investigated as possible antipsychotic and anxiolytic drugs.

<span class="mw-page-title-main">CTEP</span> Chemical compound

CTEP (Ro4956371) is a research drug developed by Hoffmann-La Roche that acts as a selective allosteric antagonist of the metabotropic glutamate receptor subtype mGluR5, binding with nanomolar affinity and over 1000 times selectivity over all other receptor targets tested. In animal studies it was found to have a high oral bioavailability and a long duration of action, lasting 18 hours after a single dose, giving it considerably improved properties over older mGluR5 antagonists such as MPEP and fenobam.

<span class="mw-page-title-main">RO4491533</span> Chemical compound

RO-4491533 is a drug developed by Hoffmann-La Roche which acts as a potent and selective negative allosteric modulator for group II of the metabotropic glutamate receptors (mGluR2/3), being equipotent at mGluR2 and mGluR3 but without activity at other mGluR subtypes. In animal studies, RO-4491533 produced antidepressant effects and reversed the effects of the mGluR2/3 agonist LY-379,268 with similar efficacy but slightly lower potency than the mGluR2/3 antagonist LY-341,495. A number of related compounds are known, with similar effects in vitro and a fairly well characterized structure-activity relationship.

<span class="mw-page-title-main">AZD9272</span> Medication

AZD 9272 is a drug which acts as a selective antagonist for the metabotropic glutamate receptor subtype mGluR5. It was unsuccessful in human trials as an analgesic, but continues to be widely used in research especially as its radiolabelled forms.

References

  1. Varney MA, Cosford ND, Jachec C, Rao SP, Sacaan A, Lin FF, Bleicher L, Santori EM, Flor PJ, Allgeier H, Gasparini F, Kuhn R, Hess SD, Veliçelebi G, Johnson EC (July 1999). "SIB-1757 and SIB-1893: selective, noncompetitive antagonists of metabotropic glutamate receptor type 5". The Journal of Pharmacology and Experimental Therapeutics. 290 (1): 170–81. PMID   10381773.
  2. Chapman AG, Nanan K, Williams M, Meldrum BS (July 2000). "Anticonvulsant activity of two metabotropic glutamate group I antagonists selective for the mGlu5 receptor: 2-methyl-6-(phenylethynyl)-pyridine (MPEP), and (E)-6-methyl-2-styryl-pyridine (SIB 1893)". Neuropharmacology. 39 (9): 1567–74. doi:10.1016/S0028-3908(99)00242-7. PMID   10854901.
  3. Wang SJ, Sihra TS (June 2004). "Noncompetitive metabotropic glutamate5 receptor antagonist (E)-2-methyl-6-styryl-pyridine (SIB1893) depresses glutamate release through inhibition of voltage-dependent Ca2+ entry in rat cerebrocortical nerve terminals (synaptosomes)". The Journal of Pharmacology and Experimental Therapeutics. 309 (3): 951–8. doi:10.1124/jpet.103.064881. PMID   14982967.
  4. Mathiesen JM, Svendsen N, Bräuner-Osborne H, Thomsen C, Ramirez MT (March 2003). "Positive allosteric modulation of the human metabotropic glutamate receptor 4 (hmGluR4) by SIB-1893 and MPEP". British Journal of Pharmacology . 138 (6): 1026–30. doi:10.1038/sj.bjp.0705159. PMC   1573757 . PMID   12684257.