1216771-62-8Relevant articles and documents
Identification and characterisation of 2-aminopyridine inhibitors of checkpoint kinase 2
Hilton, Stephen,Naud, Sebastien,Caldwell, John J.,Boxall, Kathy,Burns, Samantha,Anderson, Victoria E.,Antoni, Laurent,Allen, Charlotte E.,Pearl, Laurence H.,Oliver, Antony W.,Wynne Aherne,Garrett, Michelle D.,Collins, Ian
supporting information; experimental part, p. 707 - 718 (2010/04/29)
5-(Hetero)aryl-3-(4-carboxamidophenyl)-2-aminopyridine inhibitors of CHK2 were identified from high throughput screening of a kinase-focussed compound library. Rapid exploration of the hits through straightforward chemistry established structure-activity relationships and a proposed ATP-competitive binding mode which was verified by X-ray crystallography of several analogues bound to CHK2. Variation of the 5-(hetero)aryl substituent identified bicyclic dioxolane and dioxane groups which improved the affinity and the selectivity of the compounds for CHK2 versus CHK1. The 3-(4-carboxamidophenyl) substituent could be successfully replaced by acyclic ω-aminoalkylamides, which made additional polar interactions within the binding site and led to more potent inhibitors of CHK2. Compounds from this series showed activity in cell-based mechanistic assays for inhibition of CHK2.