[{"from": "human", "value": "Provide a description of this molecule. [C][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][=Branch1][C][=O][N][Branch1][Ring2][Se][Ring1][#Branch1][C][C][N][C][=Branch1][C][=O][C][=C][C][=C][C][=C][Ring1][=Branch1][Se][Ring1][#Branch2]"}, {"from": "gpt", "value": "The molecule is under investigation in clinical trial NCT02166242 (Ethaselen for the Treatment of Thioredoxin Reductase High Expression Advanced Non-small Cell Lung Cancers)."}]