EGFR mutant- in-1, A 5-methylpyrimidopyridone derivative are effective selective EGFRL858R T790M C797S mutant inhibitors with IC50 of 27.5 nM, which significantly weakened EGFRWT effect.
Afatinib impurity 11 is an impurity of Afatinib. Afatinib is an irreversible EGFR family inhibitor with IC50s of 0.5 nM, 0.4 nM, 10 nM and 14 nM for EGFRwt, EGFRL858R, EGFRL858R T790M and HER2, respectively[1]. [1]. Li D, et al. BIBW2992, an irreversible EGFR HER2 inhibitor highly effective in preclinical lung cancer models. Oncogene. 2008 Aug 7;27(34):4702-11.