RESUMO
A series of amino-pyrimidines was developed based upon an initial kinase cross-screening hit from a CDK2 program. Kinase profiling and structure-based drug design guided the optimization from the initial 1,2,3-benzotriazole hit to a potent and selective JNK inhibitor, compound 24f (JNK1 and 2 IC(50)=16 and 66 nM, respectively), with bioavailability in rats and suitable for further in vivo pharmacological evaluation.
Assuntos
Proteínas Quinases JNK Ativadas por Mitógeno/antagonistas & inibidores , Inibidores de Proteínas Quinases/química , Inibidores de Proteínas Quinases/farmacologia , Pirimidinas/química , Pirimidinas/farmacologia , Triazóis/química , Triazóis/farmacologia , Animais , Cristalografia por Raios X , Desenho de Fármacos , Humanos , Proteínas Quinases JNK Ativadas por Mitógeno/metabolismo , Modelos Moleculares , Inibidores de Proteínas Quinases/síntese química , Pirimidinas/síntese química , Ratos , Relação Estrutura-Atividade , Triazóis/síntese químicaRESUMO
Learnings from previous Roche p38-selective inhibitors were applied to a new fragment hit, which was optimized to a potent, exquisitely selective preclinical lead with a good pharmacokinetic profile.
Assuntos
Desenho de Fármacos , Ativação Enzimática/efeitos dos fármacos , Inibidores Enzimáticos/síntese química , Inibidores Enzimáticos/farmacologia , Proteína Quinase 14 Ativada por Mitógeno/antagonistas & inibidores , Pirimidinas/síntese química , Pirimidinas/farmacologia , Animais , Cristalografia por Raios X , Inibidores Enzimáticos/química , Concentração Inibidora 50 , Modelos Moleculares , Estrutura Molecular , Pirazóis/síntese química , Pirazóis/química , Pirazóis/farmacologia , Pirimidinas/química , RatosRESUMO
The development of a new series of p38α inhibitors resulted in the identification of two clinical candidates, one of which was advanced into a phase 2 clinical study for rheumatoid arthritis. The original lead, an lck inhibitor that also potently inhibited p38α, was a screening hit from our kinase inhibitor library. This manuscript describes the optimization of the lead to p38-selective examples with good pharmacokinetic properties.
Assuntos
Descoberta de Drogas/métodos , Proteína Quinase 14 Ativada por Mitógeno/antagonistas & inibidores , Piridonas/farmacologia , Piridonas/farmacocinética , Pirimidinas/farmacologia , Pirimidinas/farmacocinética , Administração Oral , Artrite Reumatoide/tratamento farmacológico , Disponibilidade Biológica , Linhagem Celular , Ensaios Clínicos como Assunto , Humanos , Proteína Quinase 14 Ativada por Mitógeno/química , Modelos Moleculares , Conformação Proteica , Inibidores de Proteínas Quinases/administração & dosagem , Inibidores de Proteínas Quinases/química , Inibidores de Proteínas Quinases/farmacocinética , Inibidores de Proteínas Quinases/farmacologia , Piridonas/administração & dosagem , Piridonas/química , Pirimidinas/administração & dosagem , Pirimidinas/química , Relação Estrutura-Atividade , Especificidade por SubstratoRESUMO
A novel series of TNF inhibitors was identified based on the screening of existing MMP inhibitor libraries. Further SAR optimization led to the discovery of a novel lead compound. Its synthesis, efficacy in experimental animal models, and pharmacokinetic data are discussed.
Assuntos
Antirreumáticos/síntese química , Artrite Reumatoide/tratamento farmacológico , Fator de Necrose Tumoral alfa/antagonistas & inibidores , Animais , Antirreumáticos/química , Antirreumáticos/farmacologia , Antirreumáticos/uso terapêutico , Modelos Animais de Doenças , Desenho de Fármacos , Humanos , Camundongos , Relação Estrutura-AtividadeRESUMO
Inhibition of the biosynthesis of proinflammatory cytokines such as tumor necrosis factor and interleukin-1 via p38 has been an approach toward the development of a disease modifying agent for the treatment of chronic inflammation and autoimmune diseases. The development of a new core structure of p38 inhibitors, 3-(4-fluorophenyl)-2-(pyridin-4-yl)-1H-pyrrolo[3,2-b] pyridine, is described. X-ray crystallographic data of the lead bound to the active site of p38 was used to guide the optimization of the series. Specific focus was placed on modulating the physical properties of the core while maintaining potent inhibition of p38. These efforts identified 42c as a potent inhibitor of p38, which also possessed the required physical properties worthy of advanced studies.