[{"from": "human", "value": "Can you suggest some reagents that might have been used in the given chemical reaction? [N][#C][C][C][=C][C][=C][Branch1][C][Cl][C][Branch1][C][Cl][=C][Ring1][Branch2]>>[N][C][C][C][=C][C][=C][Branch1][C][Cl][C][Branch1][C][Cl][=C][Ring1][Branch2]"}, {"from": "gpt", "value": "[C][C][O].[NH4+1].[Ni].[OH1-1]"}]