[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a member of pyrimidines."}, {"from": "gpt", "value": "[C][C][=C][Branch1][O][N][C][=N][N][=N][N][Ring1][Branch1][Ring1][=Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1]"}]