
doi: 10.1021/jm2007613
pmid: 21812414
Because of the critical roles of aberrant signaling in cancer, both c-MET and ALK receptor tyrosine kinases are attractive oncology targets for therapeutic intervention. The cocrystal structure of 3 (PHA-665752), bound to c-MET kinase domain, revealed a novel ATP site environment, which served as the target to guide parallel, multiattribute drug design. A novel 2-amino-5-aryl-3-benzyloxypyridine series was created to more effectively make the key interactions achieved with 3. In the novel series, the 2-aminopyridine core allowed a 3-benzyloxy group to reach into the same pocket as the 2,6-dichlorophenyl group of 3 via a more direct vector and thus with a better ligand efficiency (LE). Further optimization of the lead series generated the clinical candidate crizotinib (PF-02341066), which demonstrated potent in vitro and in vivo c-MET kinase and ALK inhibition, effective tumor growth inhibition, and good pharmaceutical properties.
Models, Molecular, Epithelial-Mesenchymal Transition, Indoles, Pyridines, Molecular Conformation, Receptor Protein-Tyrosine Kinases, Stereoisomerism, Proto-Oncogene Proteins c-met, Crystallography, X-Ray, Structure-Activity Relationship, Crizotinib, Cell Line, Tumor, Drug Design, Humans, Pyrazoles, Anaplastic Lymphoma Kinase, Drug Screening Assays, Antitumor, Cell Proliferation
Models, Molecular, Epithelial-Mesenchymal Transition, Indoles, Pyridines, Molecular Conformation, Receptor Protein-Tyrosine Kinases, Stereoisomerism, Proto-Oncogene Proteins c-met, Crystallography, X-Ray, Structure-Activity Relationship, Crizotinib, Cell Line, Tumor, Drug Design, Humans, Pyrazoles, Anaplastic Lymphoma Kinase, Drug Screening Assays, Antitumor, Cell Proliferation
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