4GG7:
reference: Multisubstituted quinoxalines and pyrido[2,3-d]pyrimidines: Synthesis and SAR study as tyrosine kinase c-Met inhibitors., Wu K, Ai J, Liu Q, Chen T, Zhao A, Peng X, Wang Y, Ji Y, Yao Q, Xu Y, Geng M, Zhang A, Bioorg Med Chem Lett. 2012 Oct 15;22(20):6368-72. doi:, 10.1016/j.bmcl.2012.08.075. Epub 2012 Aug 27. PMID: 22985853

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