[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is an antithyroid medication used in the therapy of hyperthyroidism and Graves disease. Propylthiouracil has been linked to serum aminotransferase elevations during therapy as well as to a clinically apparent, idiosyncratic liver injury that can be severe and even fatal."}, {"from": "gpt", "value": "[C][C][C][C][=C][C][=Branch1][C][=O][N][C][=Branch1][C][=S][N][Ring1][Branch2]"}]