Current kinase inhibitors cover a tiny fraction of fragment space
Graphical abstract
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2021, Advances in Heterocyclic ChemistryCitation Excerpt :Danusertib (81) is the prototype of the kinase inhibitor class originating from the Nerviano site of Pharamacia and emerging from an initiative to develop proprietary libraries based on core structural elements specifically designed to inhibit protein kinases by engaging the hinge residues in a fashion modeled on the interactions with ATP (Fig. 13).47,48 The design of the fused amino pyrazole in 81 was inspired by 3-aminopyrazole- and 3-aminoindazole-based hinge binders but with recognition of the unique and rigid nature of the bicyclic scaffold that offered vectors suitable for further decoration.41,49–51 An X-ray of a prototype compound PHA-533514 (82) bound to Aurora kinase A confirmed the anticipated binding mode and set the stage for further structural exploration.
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2016, Bioorganic and Medicinal Chemistry LettersKinase hinge binding scaffolds and their hydrogen bond patterns
2015, Bioorganic and Medicinal ChemistryCitation Excerpt :In order to make better decisions to select, design and prioritize multiple chemotypes of choice for lead optimization, understanding the interaction patterns of the primary scaffolds that anchor the compounds via hinge hydrogen bonds is of paramount importance. Recently putative hinge-binding fragments were compiled from decomposing known kinase inhibitors mapping to kinase pharmacophore models.18 We have previously reported the extraction of kinase hinge binding scaffolds from large body of X-ray structural data.19