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A series of imidazo[1,2-a]pyridine derivatives against c-Met was designed by means of bioisosteric replacement.1 In our study,a selective,potent c-Met inhibitor,A41 was identified,with IC50 values of 3.9 nM against c-Met kinase and 45.0 nM against c-Met-addicted EBC-1 cell proliferation,respectively.