[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule has been used in trials studying the prevention and treatment of Leukemia, Lung Cancer, Tobacco Use Disorder, and Lymphoproliferative Disorders."}, {"from": "gpt", "value": "[C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][C][N][=C][=S]"}]