[{"from": "human", "value": "Provide a brief overview of this molecule. [C][N][Branch1][C][C][C][/C][=C][/C][=Branch1][C][=O][N][C][=C][Branch2][Ring1][S][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][=Branch1][=Branch1][=N][C][=N][Ring1][#Branch1][N][C][=C][C][=Branch1][=Branch2][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][F][Cl][O][C@H1][C][C][O][C][Ring1][Branch1]"}, {"from": "gpt", "value": "The molecule is a tyrosine kinase receptor inhibitor that is used in the therapy of selected forms of metastatic non-small cell lung cancer. Afatinib is associated with transient elevations in serum aminotransferase levels during therapy and has been reported to cause clinically apparent acute liver injury and rare instances of death."}]