[{"from": "human", "value": "Please give me some details about this molecule. [C][=N][C][=C][Branch1][Ring2][N][Ring1][Branch1][C][=Branch1][C][=S][N][=C][N][Ring1][Branch2]"}, {"from": "gpt", "value": "The molecule is a purine analogue that is effective both as an anticancer and an immunosuppressive agent, and is used to treat leukemia and autoimmune diseases as a corticosteroid-sparing agent. Mercaptopurine therapy is associated with a high rate of serum aminotransferase elevations which can be accompanied by jaundice. In addition, mercaptopurine has been linked to instances of clinically apparent acute liver injury and long term therapy to nodular regenerative hyperplasia."}]