RESUMEN
Herein, we describe our strategy to design metabolically stable γ-secretase inhibitors which are selective for inhibition of Aß generation over Notch. We highlight our synthetic strategy to incorporate diversity and chirality. Compounds 30 (ELND006) and 34 (ELND007) both entered human clinical trials. The in vitro and in vivo characteristics for these two compounds are described. A comparison of inhibition of Aß generation in vivo between 30, 34, Semagacestat 41, Begacestat 42, and Avagacestat 43 in mice is made. 30 lowered Aß in the CSF of healthy human volunteers.
Asunto(s)
Secretasas de la Proteína Precursora del Amiloide/antagonistas & inhibidores , Péptidos beta-Amiloides/antagonistas & inhibidores , Inhibidores Enzimáticos/farmacología , Compuestos Heterocíclicos con 3 Anillos/farmacología , Pirazoles/farmacología , Quinolinas/farmacología , Receptores Notch/antagonistas & inhibidores , Sulfonamidas/farmacología , Secretasas de la Proteína Precursora del Amiloide/metabolismo , Péptidos beta-Amiloides/líquido cefalorraquídeo , Péptidos beta-Amiloides/metabolismo , Animales , Área Bajo la Curva , Factores de Transcripción con Motivo Hélice-Asa-Hélice Básico/genética , Perros , Relación Dosis-Respuesta a Droga , Diseño de Fármacos , Estabilidad de Medicamentos , Inhibidores Enzimáticos/síntesis química , Inhibidores Enzimáticos/farmacocinética , Expresión Génica/efectos de los fármacos , Compuestos Heterocíclicos con 3 Anillos/química , Proteínas de Homeodominio/genética , Humanos , Masculino , Ratones , Microsomas Hepáticos/efectos de los fármacos , Microsomas Hepáticos/metabolismo , Modelos Químicos , Estructura Molecular , Pirazoles/síntesis química , Pirazoles/farmacocinética , Quinolinas/síntesis química , Quinolinas/farmacocinética , ARN Mensajero/genética , ARN Mensajero/metabolismo , Ratas , Ratas Sprague-Dawley , Receptores Notch/metabolismo , Relación Estructura-Actividad , Sulfonamidas/química , Factores de Tiempo , Factor de Transcripción HES-1RESUMEN
Mutations in leucine-rich repeat kinase 2 (LRRK2) are associated with familial Parkinson's disease (PD). The kinase activity of this complex protein is increased by pathogenic mutations. Inhibition of LRRK2 kinase activity has therefore emerged as a promising approach for the treatment of PD. Herein we report our findings on a series of 4-alkylamino-7-aryl-3-cyanoquinolines that exhibit kinase inhibitory activity against both wild type and G2019S mutant LRRK2. Activity was determined in both biochemical and cellular assays. Compound 14 was further evaluated in an in vivo pharmacodynamic study and found to significantly inhibit Ser935 phosphorylation after oral dosing.
Asunto(s)
Descubrimiento de Drogas , Inhibidores de Proteínas Quinasas/farmacología , Proteínas Serina-Treonina Quinasas/antagonistas & inhibidores , Quinolinas/farmacología , Animales , Relación Dosis-Respuesta a Droga , Células HEK293 , Humanos , Proteína 2 Quinasa Serina-Treonina Rica en Repeticiones de Leucina , Ratones , Ratones Noqueados , Ratones Transgénicos , Modelos Moleculares , Estructura Molecular , Mutación , Inhibidores de Proteínas Quinasas/síntesis química , Inhibidores de Proteínas Quinasas/química , Proteínas Serina-Treonina Quinasas/genética , Proteínas Serina-Treonina Quinasas/metabolismo , Quinolinas/síntesis química , Quinolinas/química , Relación Estructura-ActividadRESUMEN
Structure-activity relationship (SAR) of a novel, potent and metabolically stable series of benzo [3.2.1] bicyclic sulfonamide-pyrazoles as γ-secretase inhibitors are described. Compounds that are efficacious in reducing the cortical Aßx-40 levels in FVB mice via oral dose, as well as those with high selectivity over Notch, are highlighted.
