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  • Title: 4-Anilino-7-alkenylquinoline-3-carbonitriles as potent MEK1 kinase inhibitors.
    Author: Berger DM, Dutia M, Powell D, Floyd MB, Torres N, Mallon R, Wojciechowicz D, Kim S, Feldberg L, Collins K, Chaudhary I.
    Journal: Bioorg Med Chem; 2008 Oct 15; 16(20):9202-11. PubMed ID: 18815050.
    Abstract:
    A series of substituted 7-alkenyl 4[3-chloro-4-(1-methyl-1H-imidazol-2-ylsulfanyl)]anilino-3-quinolinecarbonitrile analogs were synthesized and evaluated as MEK1 kinase inhibitors. The synthetic details, structure-activity relationships, biological activity, and selected oral exposure studies of these analogs are described. From these studies, compound 5m was chosen as a strong candidate for further evaluation. The selectivity of 5m was ascertained against a panel of 17 kinases, where activity was observed against EGFR, Src, Lyn, and IR kinases. Western blot studies in WM-266 cells demonstrated that 5m inhibited phosphorylation of ERK, while additional kinase pathways tested showed no inhibition at up to 10 microM of 5 m. PK studies, as well as a xenograft and in vivo biomarker studies are described for 5m.
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