Identification and structure–activity relationship of 8-hydroxy-quinoline-7-carboxylic acid derivatives as inhibitors of Pim-1 kinase

Pim-1 kinase is a cytoplasmic serine/threonine kinase that controls programmed cell death by phosphorylating substrates that regulate both apotosis and cellular metabolism. A series of 2-styrylquinolines and quinoline-2-carboxamides has been identified as potent inhibitors of the Pim-1 kinase. The 8-hydroxy-quinoline 7-carboxylic acid moiety appeared to be a crucial pharmacophore for activity. Molecular modeling indicated that interaction of this scaffold with Asp186 and Lys67 residues within the ATP-binding pocket might be responsible for the kinase inhibitory potency.

Graphical abstract2-Substituted 8-hydroxy-quinoline-7-carboxylic acid compounds have been identified as small molecule inhibitors of the Pim-1 kinase and molecular docking studies have shown their potential binding mode.Figure optionsDownload full-size imageDownload as PowerPoint slide