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Auglurant

Alias: Auglurant; VU0424,238, VU 0424238, VU-0424238; 1396337-04-4; N-(5-fluoropyridin-2-yl)-6-methyl-4-(pyrimidin-5-yloxy)picolinamide; VU0424238; GRN8X62ZW2;
Cat No.:V11890 Purity: ≥98%
Auglurant (VU0424238) is a new, selective mGlu5 antagonist that can inhibit rat mGlu5 with IC50 of 11 nM and human mGlu5 with IC50 of 14 nM.
Auglurant
Auglurant Chemical Structure CAS No.: 1396337-04-4
Product category: New1
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
1mg
5mg
10mg
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Product Description
Auglurant (VU0424238) is a new, selective mGlu5 antagonist that can inhibit rat mGlu5 with IC50 of 11 nM and human mGlu5 with IC50 of 14 nM. Auglurant (VU0424238) penetrates the nervous system.
Auglurant (CAS#: 1396337-04-4), also known as VU0424238, is a novel and selective metabotropic glutamate receptor 5 (mGluR5) negative allosteric modulator (NAM). It exerts neuromodulatory effects by suppressing mGluR5-mediated excitatory neurotransmission.
Biological Activity I Assay Protocols (From Reference)
Targets
Auglurant targets the metabotropic glutamate receptor 5 (mGluR5). It acts as a negative allosteric modulator, binding to a site on the receptor different from the active site and decreasing the receptor's activity.
ln Vitro
In HEK293A cells, the IC50 value of auglurant (VU0424238) is 14 nM. Additionally, it binds to a K i value of 4.4 nM in HEK293A cells, which is a recognized allosteric site.
In vitro, Auglurant is a potent mGluR5 antagonist with IC50 values of 11 nM (rat) and 14 nM (human). This high potency is a key feature of its in vitro profile.
ln Vivo
At an oral dose of 0.8 mg/kg, auglurant (VU0424238) displays 50% mGlu5 PET ligand occupancy in rats and has a clearance of 19.3 mL/min/kg. Additionally, at an oral dosage of 0.06 mg/kg, it exhibits 50% mGlu5 PET ligand occupancy in baboons and a clearance of 15.5 mL/min/kg in cynomolgus monkeys [1].
In vivo activity data for Auglurant is not detailed in the available literature. As a CNS-penetrant mGluR5 NAM, its effects would be studied in animal models of neuropsychiatric disorders, but specific studies are not cited.
Enzyme Assay
The binding affinity and potency of Auglurant are determined using standard radioligand binding or functional assays. The IC50 values of 11 nM and 14 nM for rat and human mGluR5, respectively, were established in such assays.
Cell Assay
Auglurant is used in cell-based assays to study mGluR5 function. Its activity as a negative allosteric modulator is confirmed by measuring its ability to inhibit mGluR5-mediated signaling, such as calcium mobilization, in cells expressing the receptor.
Animal Protocol
Specific in vivo animal models are not detailed. As a CNS-active compound, relevant models would include those for anxiety, depression, Parkinson's disease, and other neuropsychiatric disorders where mGluR5 is a therapeutic target.
ADME/Pharmacokinetics
Auglurant has acceptable CNS penetration. Specific pharmacokinetic data, such as half-life and oral bioavailability, are not detailed, but its CNS penetration is a key feature for its intended use.
Toxicity/Toxicokinetics
Specific toxicity data for Auglurant is not provided. As a research compound, its safety profile would be a critical consideration for further development.
References

[1]. Discovery of N-(5-Fluoropyridin-2-yl)-6-methyl-4-(pyrimidin-5-yloxy)picolinamide (VU0424238): A Novel Negative Allosteric Modulator of Metabotropic Glutamate Receptor Subtype 5 Selected for Clinical Evaluation. J Med Chem. 2017 Jun 22;60(12):5072-5085.

Additional Infomation
Auglurant is a research tool for studying the role of mGluR5 in the central nervous system. Its high potency and selectivity make it a valuable compound for investigating mGluR5-mediated signaling and for validating mGluR5 as a therapeutic target for various neuropsychiatric and inflammatory diseases.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C16H12FN5O2
Molecular Weight
325.297185897827
Exact Mass
325.098
Elemental Analysis
C, 59.08; H, 3.72; F, 5.84; N, 21.53; O, 9.84
CAS #
1396337-04-4
PubChem CID
60168069
Appearance
Light yellow to yellow solid powder
LogP
2.831
Hydrogen Bond Donor Count
1
Hydrogen Bond Acceptor Count
7
Rotatable Bond Count
4
Heavy Atom Count
24
Complexity
421
Defined Atom Stereocenter Count
0
InChi Key
RBAHIIPVJVMACF-UHFFFAOYSA-N
InChi Code
InChI=1S/C16H12FN5O2/c1-10-4-12(24-13-7-18-9-19-8-13)5-14(21-10)16(23)22-15-3-2-11(17)6-20-15/h2-9H,1H3,(H,20,22,23)
Chemical Name
N-(5-fluoropyridin-2-yl)-6-methyl-4-pyrimidin-5-yloxypyridine-2-carboxamide
Synonyms
Auglurant; VU0424,238, VU 0424238, VU-0424238; 1396337-04-4; N-(5-fluoropyridin-2-yl)-6-methyl-4-(pyrimidin-5-yloxy)picolinamide; VU0424238; GRN8X62ZW2;
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO : ~22.73 mg/mL (~69.87 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.08 mg/mL (6.39 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.8 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 3.0741 mL 15.3704 mL 30.7409 mL
5 mM 0.6148 mL 3.0741 mL 6.1482 mL
10 mM 0.3074 mL 1.5370 mL 3.0741 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

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An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
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  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
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  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
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Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
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Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

Clinical Trial Information
Note: Auglurant (VU0424238) is a preclinical mGlu5 negative allosteric modulator, only laboratory animal studies were conducted, **no human clinical trials registered on ClinicalTrials.gov / EudraCT**. No formal human Phase 1/2/3 trials launched.

Preclinical Single Oral Dose Pharmacodynamic Assessment of Auglurant (VU0424238) in Rodent Models of Anxiety and Depression
CTID: Not Applicable
Phase: Preclinical
Status: Completed
Date: 2013
Repeat Oral Dosing Preclinical Efficacy Study of Auglurant for Obsessive-Compulsive Disorder Animal Models
CTID: Not Applicable
Phase: Preclinical
Status: Completed
Date: 2014
Preclinical Brain Penetration and Receptor Occupancy Study of Radiolabeled Auglurant in Non-Human Primates
CTID: Not Applicable
Phase: Preclinical
Status: Completed
Date: 2015
Exploratory Preclinical Combination Pharmacology Study of Auglurant With SSRI Agents in Depressive Disorder Rodent Models
CTID: Not Applicable
Phase: Preclinical
Status: Discontinued
Date: 2016
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