N-(2-((2-(dimethylamino)ethyl) (methyl)amino)-4-methoxy-5-((4-(1-methyl-1H-indol-3-yl) pyrimidin-2-yl)amino)phenyl)-3 hydroxypropanamide,N-(2-((2-(dimethylamino)ethyl) (methyl)amino)-4-methoxy-5-((4-(1-methyl-1H-indol-3-yl) pyrimidin-2-yl)amino)phenyl)-3 hydroxypropanamide,Osimertinib