Identification of Type II Inhibitors Targeting BRAF Using Privileged Pharmacophores
摘要:
V‐RAF murine sarcoma viral oncogene homologue B1 (BRAF) is the most frequently mutated protein kinase in human cancers. The most common mutant BRAF V600E constitutively activates the RAS/RAF/MEK/ERK signaling pathway. BRAF has been validated as an important therapeutic target in human cancers. Phenylaminopyrimidine and unsymmetrical diaryl urea are two privileged pharmacophores in kinase inhibitor drug discovery. Herein, we describe the design of a novel hybrid pharmacophore, 4‐phenylaminopyrimidine urea, using the above two pharmacophores. A new series of compounds were in turn synthesized and evaluated to successfully identify selective inhibitors of BRAF and oncogenic BRAF V600E. Once daily oral dosing of lead compound 3 demonstrated sustained antitumor efficacy in A549 human non‐small‐cell lung cancer xenograft model. Molecular docking suggested that compound 3 might be a type II kinase inhibitor binding to the DFG‐out conformation of BRAF.
[EN] UREA COMPOUNDS AS WELL AS PREPARATION METHODS, INTERMEDIATES AND USES THEREOF<br/>[FR] COMPOSÉS D'URÉE AINSI QUE LEURS PROCÉDÉS DE PRÉPARATION, INTERMÉDIAIRES ET UTILISATIONS
申请人:SHANGHAI INSITITUTE OF PHARMACEUTICAL INDUSTRY
Phosphatase Binding Compounds and Methods of Using Same
申请人:Yale University
公开号:US20200268897A1
公开(公告)日:2020-08-27
The present invention provides bifunctional compounds that efficiently dephosphorylate certain phospho-activated target proteins. Such target proteins can be any protein involved in the pathway of a disease or disorder, such as but not limited to cancer, neurodegeneration, metabolic disease, diabetes, insulin resistance, and so forth.
Identification of Type II Inhibitors Targeting BRAF Using Privileged Pharmacophores
V‐RAF murine sarcoma viral oncogene homologue B1 (BRAF) is the most frequently mutated protein kinase in human cancers. The most common mutant BRAF V600E constitutively activates the RAS/RAF/MEK/ERK signaling pathway. BRAF has been validated as an important therapeutic target in human cancers. Phenylaminopyrimidine and unsymmetrical diaryl urea are two privileged pharmacophores in kinase inhibitor drug discovery. Herein, we describe the design of a novel hybrid pharmacophore, 4‐phenylaminopyrimidine urea, using the above two pharmacophores. A new series of compounds were in turn synthesized and evaluated to successfully identify selective inhibitors of BRAF and oncogenic BRAF V600E. Once daily oral dosing of lead compound 3 demonstrated sustained antitumor efficacy in A549 human non‐small‐cell lung cancer xenograft model. Molecular docking suggested that compound 3 might be a type II kinase inhibitor binding to the DFG‐out conformation of BRAF.