5XFF:
reference: LY2874455 potently inhibits FGFR gatekeeper mutants and overcomes mutation-based resistance., Wu D, Guo M, Min X, Dai S, Li M, Tan S, Li G, Chen X, Ma Y, Li J, Jiang L, Qu L, Zhou Z, Chen Z, Chen L, Xu G, Chen Y, Chem Commun (Camb). 2018 Oct 23;54(85):12089-12092. doi: 10.1039/c8cc07546h. PMID: 30298149

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