[{"from": "human", "value": "Please suggest some possible reagents that could have been used in the following chemical reaction. [C][O][C][C][N][Branch1][Ring2][C][C][#N][C][Ring1][#Branch1]>>[C][O][C][C][N][Branch1][Ring2][C][C][N][C][Ring1][#Branch1]"}, {"from": "gpt", "value": "[C][C][O].[Ni]"}]