[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a selective A1 adenosine receptor antagonist."}, {"from": "gpt", "value": "[C][C][N][Branch2][Ring2][=Branch1][C][C][N][C][=Branch2][Ring1][=Branch1][=N][C][=C][Ring1][Branch1][C][=Branch1][C][=O][N][Branch1][=Branch2][C][=Branch1][C][=O][N][Ring1][Branch2][C][C][C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][C][O]"}]