[{"from": "human", "value": "Please suggest some possible reagents that could have been used in the following chemical reaction. [C][C][Branch1][#C][C][=C][C][=C][C][=N][C][=C][C][=C][Ring1][#Branch2][Ring1][=Branch1][C][Branch1][C][N][C][#N]>>[C][C][Branch1][#C][C][=C][C][=C][C][=N][C][=C][C][=C][Ring1][#Branch2][Ring1][=Branch1][C][Branch1][C][N][C][N]"}, {"from": "gpt", "value": "[C][O].[N][C][C][N].[Ni]"}]