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