874143-67-6Relevant articles and documents
Novel inhibitors of B-RAF based on a disubstituted pyrazine scaffold. Generation of a nanomolar lead
Niculescu-Duvaz, Ion,Roman, Esteban,Whittaker, Steven R.,Friedlos, Frank,Kirk, Ruth,Scanlon, Ian J.,Davies, Lawrence C.,Niculescu-Duvaz, Dan,Marais, Richard,Springer, Caroline J.
, p. 407 - 416 (2006)
B-RAF, a serine/threonine kinase, plays an important role in the development of certain classes of cancer, especially melanoma. As a result of high-throughput screening of a 23,000 compound library, 2-(3,4,5- trimethoxyphenylamino)-6-(3-acetamidophenyl)pyrazine, 1, was identified as a low micromolar (IC50 = 3.5 μM) B-RAF inhibitor. This compound was chosen as the starting point of a program aimed at producing potent inhibitors of B-RAF. We have synthesized a series of 40 novel compounds, which involved extensive modifications to the 2-(3,4,5-trimethoxyphenylamino) moiety (ring A) of 1. Their biological profiles against isolated B-RAF and mutated B-RAF in a cellular assay have been determined. These efforts led to the identification of two compounds exhibiting activities lower than 800 nM against B-RAF.