TCS PIM-1 1

• CAT Number: I003733
• CAS Number: 491871-58-0
• Molecular Formula: C₁₈H₁₁BrN₂O₂
• Molecular Weight: 367.2
• Purity: ≥95%
• Synonyms: 6-(5-bromo-2-hydroxyphenyl)-2-oxo-4-phenyl-1,2-dihydropyridine-3-carbonitrile
• Target: Pim
• Solubility: DMSO: ≥ 52 mg/mL
• Storage: Store at 4°C
• IC50: 50 nM [1]
• InChI: InChI=1S/C18H11BrN2O2/c19-12-6-7-17(22)14(8-12)16-9-13(11-4-2-1-3-5-11)15(10-20)18(23)21-16/h1-9,22H,(H,21,23)
• InChIKey: SVSYJTYGPLVUOZ-UHFFFAOYSA-N
• SMILES: C1=CC=C(C=C1)C2=C(C(=O)NC(=C2)C3=C(C=CC(=C3)Br)O)C#N

TCS PIM-1 1 (Cat.No:I003733) is a potent and selective ATP-competitive Pim-1 kianse inhibitor with IC50 of 50 nM, displays good selectivity over Pim-2 and MEK1/MEK2(IC50s >20,000 nM). TCS PIM-1 1 bound convincingly within the ATP-binding site of Pim-1 suggesting an ATP-competitive inhibitory mechanism. Preliminary data further suggested that 1 lacked in vitro inhibitory activity toward related serine/threonine kinases Pim-2 and MEK1/2 (IC50 > 20 lM). Hence, small molecules similar to TCS PIM-1 1 may serve as useful starting scaffolds for the development of other improved yet selective Pim-1 inhibitors.

Reference

[1]. Cheney IW, et al. Identification and structure-activity relationships of substituted pyridones as inhibitors of Pim-1 kinase. Bioorg Med Chem Lett. 2007 Mar 15;17(6):1679-83.
Abstract
A novel series of highly potent substituted pyridone Pim-1 kinase inhibitors is described. Structural requirements for in vitro activity are outlined as well as a complex crystal structure with the most potent Pim-1 inhibitor reported (IC(50)=50 nM). A hydrogen bond matrix involving the Pim-1 inhibitor, two water molecules, and the catalytic core, together with a potential weak hydrogen bond between an aromatic hydrogen on the R(1) phenyl ring and a main-chain carbonyl of Pim-1, accounts for the overall potency of this inhibitor.