[{"from": "human", "value": "Given this chemical reaction, what are some reagents that could have been used? [Cl][C][C][C][Br].[O][C][C][C][N][C][C][Ring1][=Branch1]>>[O][C][C][C][N][Branch1][Branch1][C][C][C][Cl][C][C][Ring1][#Branch2]"}, {"from": "gpt", "value": "[C][C][Branch1][C][C][=O].[Na+1].[OH1-1]"}]