[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a thiopurine."}, {"from": "gpt", "value": "[C][C][N][Branch2][Ring1][Ring2][C][C][C][N][C][=C][C][=Branch1][=Branch1][=N][C][=NH1+1][Ring1][=Branch1][N][=C][N][Ring1][Branch2][C][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C]"}]