[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a pyridopyrimidine."}, {"from": "gpt", "value": "[C][C][N][C][=Branch1][C][=O][C][=C][Branch1][=Branch1][N][C][Ring1][#Branch1][=S][N][=C][C][C][C][C][C][Ring1][=Branch1][=C][Ring1][=N]"}]