[{"from": "human", "value": "Could you provide a description of this molecule? [C][O][C][=C][Branch2][Ring1][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][N][=C][N][=C][Ring1][#Branch1][N][C][=C][C][=Branch1][=Branch2][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][F][Cl][O][C][C][C][N][C][C][O][C][C][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is a selective tyrosine kinase receptor inhibitor used in the therapy of non-small cell lung cancer. Gefitinib therapy is associated with transient elevations in serum aminotransferase levels and rare instances of clinically apparent acute liver injury."}]