[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is an organic molecular entity. It is a conjugate base of a mitomycin C."}, {"from": "gpt", "value": "[C][C][=C][Branch2][Ring2][=Branch2][C][=Branch1][C][=O][C][=C][Branch2][Ring1][=Branch2][C@][Branch2][Ring1][Ring1][C@@H1][C@@H1][Branch1][Ring2][N][Ring1][Ring1][C][N][Ring1][=Branch1][C][Ring1][=Branch2][=C][Ring1][=C][O-1][O][C][C][O][C][=Branch1][C][=O][N][N]"}]