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ID: ALA2417377

Journal: Bioorg Med Chem Lett

Title: Hit-to-lead optimization and kinase selectivity of imidazo[1,2-a]quinoxalin-4-amine derived JNK1 inhibitors.

Authors: Li B, Cociorva OM, Nomanbhoy T, Weissig H, Li Q, Nakamura K, Liyanage M, Zhang MC, Shih AY, Aban A, Hu Y, Cajica J, Pham L, Kozarich JW, Shreder KR.

Abstract: As the result of a rhJNK1 HTS, the imidazo[1,2-a]quinoxaline 1 was identified as a 1.6 μM rhJNK1 inhibitor. Optimization of this compound lead to AX13587 (rhJNK1 IC50=160 nM) which was co-crystallized with JNK1 to identify key molecular interactions. Kinase profiling against 125+ kinases revealed AX13587 was an inhibitor of JNK, MAST3, and MAST4 whereas its methylene homolog AX14373 (native JNK1 IC50=47 nM) was a highly specific JNK inhibitor.

CiteXplore: 23916259

DOI: 10.1016/j.bmcl.2013.06.087