[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is an iminium ion with formula C8H13N6O, that is an intermediate in the biosynthesis of methanopterin by Methanocaldococcus jannaschii. It has a role as a bacterial metabolite."}, {"from": "gpt", "value": "[C][=N+1][C][Branch2][Ring1][Ring1][C][N][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][N][C][=Branch1][Ring2][=N][Ring1][#Branch1][N][C][N]"}]