[{"from": "human", "value": "Please suggest some possible reagents that could have been used in the following chemical reaction. [C][I].[O][C][C][=C][C][=C][Branch1][C][Br][C][=N][Ring1][#Branch1]>>[C][O][C][C][=C][C][=C][Branch1][C][Br][C][=N][Ring1][#Branch1]"}, {"from": "gpt", "value": "[C][C][C][O][C][Ring1][Branch1].[H-1].[Na+1]"}]