Almonertinib mesylate

Almonertinib mesylate is an orally active, irreversible, third-generation EGFR tyrosine kinase inhibitor with high selectivity for EGFR sensitization and T790M resistance mutations, and also shows strong inhibitory activity against T790M, T790M/L858R, and T790M/Del19, with IC50 of 0.37, 0.29, and 0.21 nM, respectively. The IC50 of T790M/Del19 was 0.37, 0.29 and 0.21 nM, respectively, but the inhibitory effect on wild-type was weaker, with an IC50 of 3.39 nM. It can be used in the research of non-small cell lung cancer.