[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a member of 6,7-dihydropteridines."}, {"from": "gpt", "value": "[C][C][N][=C][C][=Branch1][Ring2][=N][Ring1][=Branch1][C][=N][C][=N][Ring1][#Branch1]"}]