JBJ-04-125-02 can inhibit cancer cell proliferation and EGFRL858R T790M C797S signaling. JBJ-04-125-02 has anti-tumor activities. JBJ-04-125-02 is a potent, mutant-selective, allosteric and orally active EGFR inhibitor with an IC50 of 0.26 nM for EGFRL858