[{"from": "human", "value": "From the provided chemical reaction, propose some possible reagents that could have been used. [Cl][C][C][=C][C][=C][C][=C][Ring1][=Branch1].[N][#C][C][C][N][C][C][C][#N]>>[N][#C][C][C][N][Branch1][Branch1][C][C][C][#N][C][C][=C][C][=C][C][=C][Ring1][=Branch1]"}, {"from": "gpt", "value": "[C][C][#N].[O][=C][Branch1][C][O-1][O-1].[I-1].[Na+1].[Na+1].[Na+1]"}]