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Pleconaril

Alias: Pleconaril, Picovir; VP 63843; Win 63843;SR-263843; SR-63843; VP-63843; Win-63843; SR263843; SR63843; VP63843; Win63843; SR 263843; SR 63843;
Cat No.:V2818 Purity: ≥98%
Pleconaril (also known as VP 63843; Win 63843) is acapsid inhibitor and an antiviral drug that has the potential for the treatment of enterovirus infection and asthma.
Pleconaril
Pleconaril Chemical Structure CAS No.: 153168-05-9
Product category: Enterovirus
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
5mg
10mg
25mg
50mg
100mg
250mg
500mg
Other Sizes

Other Forms of Pleconaril:

  • Pleconaril-d4
Official Supplier of:
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Purity & Quality Control Documentation

Purity: ≥98%

Product Description

Pleconaril (also known as VP 63843; Win 63843) is a capsid inhibitor and an antiviral drug that has the potential for the treatment of enterovirus infection and asthma. Pleconaril is effective in inhibiting replication with an IC50 of 50 nM. Pleconaril, administered either orally or intranasally, is active against viruses in the Picornaviridae family, including Enterovirus and Rhinovirus.It has shown useful activity against the dangerous strain enterovirus D68. Pleconaril has been used as treatment on a compassionateuse basis in neonates and immunodeficient patients with severe EV infections.

Biological Activity I Assay Protocols (From Reference)
ln Vitro

In vitro activity: Pleconaril (also known as VP 63843; Win 63843) is a capsid inhibitor and an antiviral drug that has the potential for the treatment of enterovirus infection and asthma. Pleconaril is effective in inhibiting replication with an IC50 of 50 nM. Pleconaril, administered either orally or intranasally, is active against viruses in the Picornaviridae family, including Enterovirus and Rhinovirus.It has shown useful activity against the dangerous strain enterovirus D68. Pleconaril has been used as treatment on a compassionateuse basis in neonates and immunodeficient patients with severe EV infections.


Kinase Assay: Pleconaril (also known as VP 63843; Win 63843) is a capsid inhibitor and an antiviral drug that has the potential for the treatment of enterovirus infection and asthma. Pleconaril is effective in inhibiting replication with an IC50 of 50 nM.


Cell Assay: Rhinovirus infections do not only cause common colds, but may also trigger severe exacerbations of asthma and chronic obstructive pulmonary disease (COPD). Even though rhinoviruses have been the focus of extensive drug development efforts in the past, an anti-rhinoviral drug still has to make it to the market. In the past, the viral capsid protein VP1 has been shown to be an important target for the development of antiviral molecules. Furthermore, many different chemical scaffolds appear to possess the properties that are required to inhibit virus replication by this mechanism of action. I-6602, an analogue of the rhinovirus inhibitor pirodavir, was previously identified as a potent inhibitor of rhinovirus infection. Here, we describe the antiviral activity of its analogue ca603, a molecule with a modified linker structure, and corroborate its mechanism of action as a capsid binder.

ln Vivo
Pleconaril, administered either orally or intranasally, is active against viruses in the Picornaviridae family, including Enterovirus and Rhinovirus.It has shown useful activity against the dangerous strain enterovirus D68. Pleconaril has been used as treatment on a compassionateuse basis in neonates and immunodeficient patients with severe EV infections.
Animal Protocol

Oral or intranasally
ADME/Pharmacokinetics
Absorption, Distribution and Excretion
70% (oral)
Toxicity/Toxicokinetics
Protein Binding
>99%
References
2015 Jul 14;12:106.2015 Mar;96(Pt 3):571-9.
Additional Infomation
Pleconaril is an antiviral drug from viral capsid inhibitor class, manufactured by Schering-Plough and intended for the prevention of acute asthma exacerbations and common cold symptoms in asthmatic patients who have had exposure to picornavirus. It acts by inhibiting viral replication. The use of pleconaril has not gained approval by the U.S. Food and Drug Administration (FDA) due to the fact that it has been found to induce CYP3A enzyme activity, therefore increasing the risk for serious drug interactions.
Pleconaril has been reported in Isatis tinctoria with data available.
Pleconaril is a small-molecule inhibitor with activity against viruses in the picornaviridae family, including enterovirus and rhinovirus. Pleconaril binds to a hydrophobic pocket in the major capsid protein and prevents uncoating of the viral RNA genome. In enteroviruses it also prevents the virus from attaching itself to the host cell.
Drug Indication
Investigated for use/treatment in upper respiratory infection.
Mechanism of Action
Pleconaril binds to a hydrophobic pocket in viral protein 1, the major protein which makes up the capsid (shell) of picornaviruses. This renders the viral capsid rigid and compressed and prevents the uncoating of its RNA. As a result, the virus is stopped from attaching to the host cell and causing infection.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C18H18F3N3O3
Molecular Weight
381.35
Exact Mass
381.13
Elemental Analysis
C, 56.69; H, 4.76; F, 14.95; N, 11.02; O, 12.59
CAS #
153168-05-9
Related CAS #
Pleconaril-d4;2749329-20-0
PubChem CID
1684
Appearance
White to biege solid powder
Density
1.3±0.1 g/cm3
Boiling Point
481.2±55.0 °C at 760 mmHg
Melting Point
61-62°
Flash Point
244.8±31.5 °C
Vapour Pressure
0.0±1.2 mmHg at 25°C
Index of Refraction
1.509
LogP
5.77
Hydrogen Bond Donor Count
0
Hydrogen Bond Acceptor Count
9
Rotatable Bond Count
6
Heavy Atom Count
27
Complexity
471
Defined Atom Stereocenter Count
0
SMILES
FC(C1=NC(C2C([H])=C(C([H])([H])[H])C(=C(C([H])([H])[H])C=2[H])OC([H])([H])C([H])([H])C([H])([H])C2=C([H])C(C([H])([H])[H])=NO2)=NO1)(F)F
InChi Key
KQOXLKOJHVFTRN-UHFFFAOYSA-N
InChi Code
InChI=1S/C18H18F3N3O3/c1-10-7-13(16-22-17(27-24-16)18(19,20)21)8-11(2)15(10)25-6-4-5-14-9-12(3)23-26-14/h7-9H,4-6H2,1-3H3
Chemical Name
3-(3,5-dimethyl-4-(3-(3-methylisoxazol-5-yl)propoxy)phenyl)-5-(trifluoromethyl)-1,2,4-oxadiazole
Synonyms
Pleconaril, Picovir; VP 63843; Win 63843;SR-263843; SR-63843; VP-63843; Win-63843; SR263843; SR63843; VP63843; Win63843; SR 263843; SR 63843;
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 : 76~100 mg/mL ( 199.29~262.23 mM )
Ethanol : 76 mg/mL
Water : ˂1 mg/mL
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 2.5 mg/mL (6.56 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (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 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 2.5 mg/mL (6.56 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 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.

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Solubility in Formulation 3: 10% DMSO+90% Corn Oil: ≥ 2.5 mg/mL (6.56 mM)


 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.6223 mL 13.1113 mL 26.2226 mL
5 mM 0.5245 mL 2.6223 mL 5.2445 mL
10 mM 0.2622 mL 1.3111 mL 2.6223 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:

  • Calculate the Mass of a compound required to prepare a solution of known volume and concentration
  • Calculate the Volume of solution required to dissolve a compound of known mass to a desired concentration
  • Calculate the Concentration of a solution resulting from a known mass of compound in a specific volume
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?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
  • Click the “Calculate” button
  • 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:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
  • Click the “Calculate” button
  • 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:
  • To calculate molar mass of a chemical compound, please enter the chemical/molecular formula and click the “Calculate’ button.
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.

  • Enter the mass of the reagent and the desired reconstitution concentration as well as the correct units
  • Click the “Calculate” button
  • The answer appears in the Volume (to add to vial) box
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.

Biological Data
  • An external file that holds a picture, illustration, etc.
Object name is 12985_2015_330_Fig5_HTML.jpg

    Plants-proposed binding mode for pleconaril (cyan) and ca603 (magenta) in the HRV14 VP1. Residues involved in direct interactions are depicted as white sticks2015 Jul 14;12:106.

  • Pleconaril

    Compound ca603 (black) inhibits HRV14 replication only when added at an early stage and behaves similar to pleconaril (grey).2015 Jul 14;12:106.

  • Pleconaril

    Sequence alignment of the HRV-A VP1 residues. Alignment was constructed with CLC sequence viewer (Qiagen)2015 Jul 14;12:106.
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