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Purity: ≥98%
SAR-20347 is a novel and potent small molecule inhibitor with specificity for JAK1 and tyrosine kinase 2 (TYK2) over other JAK family members. In cellular assays, SAR-20347 dose dependently (1 nM-10 μM) inhibited JAK1- and/or TYK2-dependent signaling from the IL-12/IL-23, IL-22, and IFN-α receptors. In vivo, TYK2 mutant mice or treatment of wild-type mice with SAR-20347 significantly reduced IL-12-induced IFN-γ production and IL-22-dependent serum amyloid A to similar extents, indicating that, in these models, SAR-20347 is probably acting through inhibition of TYK2. In an imiquimod-induced psoriasis model, the administration of SAR-20347 led to a striking decrease in disease pathology, including reduced activation of keratinocytes and proinflammatory cytokine levels compared with both TYK2 mutant mice and wild-type controls. Taken together, these data indicate that targeting both JAK1- and TYK2-mediated cytokine signaling is more effective than TYK2 inhibition alone in reducing psoriasis pathogenesis.
| ln Vitro |
When NK-92 cells are stimulated with IL-12, SAR-20347 potently suppresses the TYK2-dependent event of STAT4 phosphorylation, which is mediated by IL-12, with an IC50 of 126 nM. The selectivity of SAR-20347 is TYK2>JAK1>JAK2>JAK3. When SAR-20347 and IL-12 were added to the culture medium, the synthesis of IFN-γ was dose-dependently inhibited in the cells that produced no detectable amount of the protein. The generation of secreted embryonic alkaline phosphatase (SEAP) is inhibited dose-dependently by SAR-20347, with the highest inhibitory impact observed in these trials at 5 μM [1].
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| ln Vivo |
SAR-20347 suppresses TYK2 signaling in vivo, as demonstrated by its 91% inhibition of IFN-γ production in serum at 60 mg/kg when compared to mice administered with a vehicle. In line with gene expression data, SAR-20347 therapy dramatically decreased IL-17 production as determined by mean signal intensity [1].
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| References |
[1]. Works MG, et al. Inhibition of TYK2 and JAK1 ameliorates imiquimod-induced psoriasis-like dermatitis by inhibiting IL-22 and the IL-23/IL-17 axis. J Immunol. 2014 Oct 1;193(7):3278-87
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| Molecular Formula |
C21H18CLFN4O4
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|---|---|
| Molecular Weight |
444.8434
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| CAS # |
1450881-55-6
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| Related CAS # |
1450881-55-6; 1450881-50-6
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| SMILES |
O=C(C1=C(NC2=CC=C(C(N3CCOCC3)=O)C=C2)OC(C4=C(F)C=CC=C4Cl)=N1)N
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| InChi Key |
HEDPDFHTQKEORT-UHFFFAOYSA-N
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| InChi Code |
InChI=1S/C21H18ClFN4O4/c22-14-2-1-3-15(23)16(14)19-26-17(18(24)28)20(31-19)25-13-6-4-12(5-7-13)21(29)27-8-10-30-11-9-27/h1-7,25H,8-11H2,(H2,24,28)
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| Chemical Name |
2-(2-Chloro-6-fluorophenyl)-5-[[4-(4-morpholinylcarbonyl)phenyl]amino]-4-oxazolecarboxamide
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| Synonyms |
SAR-20347; SAR 20347; SAR20347
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| 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)
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| Solubility (In Vitro) |
DMSO : ~100 mg/mL (~224.80 mM)
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| Solubility (In Vivo) |
Solubility in Formulation 1: ≥ 2.5 mg/mL (5.62 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 (5.62 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in 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 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly. Preparation of 20% SBE-β-CD in Saline (4°C，1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution. (Please use freshly prepared in vivo formulations for optimal results.) |
| Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
| 1 mM | 2.2480 mL | 11.2400 mL | 22.4800 mL | |
| 5 mM | 0.4496 mL | 2.2480 mL | 4.4960 mL | |
| 10 mM | 0.2248 mL | 1.1240 mL | 2.2480 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.
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.
SAR20347 altersin vitrodevelopment of mouse T helper subsets.J Immunol.2014 Oct1;193(7):3278-87. |
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 SAR-20347 inhibits TYK2- and JAK1-mediated IL-12 and IFN-α signaling.J Immunol.2014 Oct1;193(7):3278-87. |
 SAR-20347 reduces imiquimod-induced inflammation and keratinocyte cell numbers.J Immunol.2014 Oct1;193(7):3278-87. |
 SAR-20347 reduces imiquimod-induced inflammation and antimicrobial peptide production.J Immunol.2014 Oct1;193(7):3278-87. |
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 SAR-20347 treatment and TYK2 mutant mice show reduced IL-17 and Vγ3.J Immunol.2014 Oct1;193(7):3278-87. |
 Proposed mechanism of action of SAR-20347 in ameliorating psoriasis-like symptoms.J Immunol.2014 Oct1;193(7):3278-87. |
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