[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is an organosulfur heterocyclic compound. It has a role as a metabolite."}, {"from": "gpt", "value": "[C][O][C][=C][C][=Branch1][C][=O][S][C@H1][Branch1][Ring2][C][Ring1][#Branch1][C][O]"}]