[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is an imidazopyrimidine, a mancude organic heterobicyclic parent and a polycyclic heteroarene."}, {"from": "gpt", "value": "[C][=C][N][=C][N][C][Ring1][=Branch1][=N][C][=C][Ring1][Branch1]"}]