WNK-IN-11

• CAT Number: I019826
• CAS Number: 2123489-30-3
• Molecular Formula: C21H21Cl2N5OS
• Molecular Weight: 462.40
• Purity: ≥95%
• Synonyms: [5-chloro-2-[2-(methylamino)-1,3-thiazol-4-yl]pyridin-4-yl]-[4-[(4-chlorophenyl)methyl]piperazin-1-yl]methanone
• InChI: InChI=1S/C21H21Cl2N5OS/c1-24-21-26-19(13-30-21)18-10-16(17(23)11-25-18)20(29)28-8-6-27(7-9-28)12-14-2-4-15(22)5-3-14/h2-5,10-11,13H,6-9,12H2,1H3,(H,24,26)
• InChIKey: MVXAYIXYYOVALX-UHFFFAOYSA-N
• SMILES: CNC1=NC(=CS1)C2=NC=C(C(=C2)C(=O)N3CCN(CC3)CC4=CC=C(C=C4)Cl)Cl

WNK-IN-11 is an allosteric With-No-Lysine (WNK) kinase inhibitor, with an IC50 of 4 nM for WNK1.
WNK-IN-11 (compound 11) shows IC50<2 μM in the cellular OSR1 phosphorylation assay with reasonable aqueous solubility, albeit with still rather high microsomal clearance. WNK-IN-11 shows ATP noncompetitive inhibition. When tested against a panel of 440 human kinases at 10 μM concentration, 2500-fold above enzyme IC50 value, WNK-IN-11 shows excellent selectivity with only a few significant off-target kinase inhibitions, most notably BTK and feline encephalitis virus-related (FER) kinase, neither of which are implicated for blood pressure regulation. This excellent selectivity profile is consistent with the predicted allosteric binding mode outside the highly conserved ATP-pocket[1].

Reference

[1]. Yamada K, et al. Optimization of Allosteric With-No-Lysine (WNK) Kinase Inhibitors and Efficacy in Rodent Hypertension Models. J Med Chem. 2017 Aug 24;60(16):7099-7107.
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