Discovery and Structure−Activity Relationship of 3-Aminopyrid-2-ones as Potent and Selective Interleukin-2 Inducible T-Cell Kinase (Itk) Inhibitors
摘要:
Interleukin-2 inducible T-cell kinase (Itk) plays a role in T-cell functions, and its inhibition potentially represents an attractive intervention point to treat autoimmune and allergic diseases. Herein we describe the discovery of a series of potent and selective novel inhibitors of Itk. These inhibitors were identified by structure-based design, starting from a fragment generated de novo, the 3-aminopyrid-2-one motif. Functionalization of the 3-amino group enabled rapid enhancement of the inhibitory activity against Itk, while introduction of a substituted heteroaromatic ring in position 5 of the pyridone fragment was key to achieving optimal selectivity over related kinases. A careful analysis of the hydration patterns in the kinase active. site was necessary to fully explain the observed selectivity profile. The best molecule prepared in this optimization campaign, 7v, inhibits Itk with a K-i of 7 nM and has a good selectivity profile across kinases.
Synthesis and profiling of a 3-aminopyridin-2-one-based kinase targeted fragment library: Identification of 3-amino-5-(pyridin-4-yl)pyridin-2(1H)-one scaffold for monopolar spindle 1 (MPS1) and Aurora kinases inhibition
摘要:
Screening a 3-aminopyridin-2-one based fragment library against a 26-kinase panel representative of the human kinome identified 3-amino 5 (1-methyl-1H-pyrazol-4-yl)pyridin-2(1H)-one (2) and 3-amino-5(pyridin-4-yl)pyridin-2(1H)-one (3) as ligand efficient inhibitors of the mitotic kinase Monopolar Spindle 1 (MPS1) and the Aurora kinase family. These kinases are well recognised as attractive targets for therapeutic intervention for treating cancer. Elucidation of the binding mode of these fragments and their analogues has been carried out by X-ray crystallography. Structural studies have identified key interactions with a conserved lysine residue and have highlighted potential regions of MPS1 which could be targeted to improve activity and selectivity. (C) 2018 The Authors. Published by Elsevier Ltd.
Synthesis and profiling of a 3-aminopyridin-2-one-based kinase targeted fragment library: Identification of 3-amino-5-(pyridin-4-yl)pyridin-2(1H)-one scaffold for monopolar spindle 1 (MPS1) and Aurora kinases inhibition
作者:Daren Fearon、Isaac M. Westwood、Rob L.M. van Montfort、Richard Bayliss、Keith Jones、Vassilios Bavetsias
DOI:10.1016/j.bmc.2018.04.033
日期:2018.7
Screening a 3-aminopyridin-2-one based fragment library against a 26-kinase panel representative of the human kinome identified 3-amino 5 (1-methyl-1H-pyrazol-4-yl)pyridin-2(1H)-one (2) and 3-amino-5(pyridin-4-yl)pyridin-2(1H)-one (3) as ligand efficient inhibitors of the mitotic kinase Monopolar Spindle 1 (MPS1) and the Aurora kinase family. These kinases are well recognised as attractive targets for therapeutic intervention for treating cancer. Elucidation of the binding mode of these fragments and their analogues has been carried out by X-ray crystallography. Structural studies have identified key interactions with a conserved lysine residue and have highlighted potential regions of MPS1 which could be targeted to improve activity and selectivity. (C) 2018 The Authors. Published by Elsevier Ltd.
Discovery and Structure−Activity Relationship of 3-Aminopyrid-2-ones as Potent and Selective Interleukin-2 Inducible T-Cell Kinase (Itk) Inhibitors
作者:Jean-Damien Charrier、Andrew Miller、David P. Kay、Guy Brenchley、Heather C. Twin、Philip N. Collier、Sharn Ramaya、Shazia B. Keily、Steven J. Durrant、Ronald M. A. Knegtel、Adam J. Tanner、Kieron Brown、Adam P. Curnock、Juan-Miguel Jimenez
DOI:10.1021/jm101499u
日期:2011.4.14
Interleukin-2 inducible T-cell kinase (Itk) plays a role in T-cell functions, and its inhibition potentially represents an attractive intervention point to treat autoimmune and allergic diseases. Herein we describe the discovery of a series of potent and selective novel inhibitors of Itk. These inhibitors were identified by structure-based design, starting from a fragment generated de novo, the 3-aminopyrid-2-one motif. Functionalization of the 3-amino group enabled rapid enhancement of the inhibitory activity against Itk, while introduction of a substituted heteroaromatic ring in position 5 of the pyridone fragment was key to achieving optimal selectivity over related kinases. A careful analysis of the hydration patterns in the kinase active. site was necessary to fully explain the observed selectivity profile. The best molecule prepared in this optimization campaign, 7v, inhibits Itk with a K-i of 7 nM and has a good selectivity profile across kinases.