[{"from": "human", "value": "What reagents could have been utilized in the following chemical reaction? [C][C][I].[O][C][C][=C][N][=C][C][Branch1][C][Br][=C][Ring1][#Branch1]>>[C][C][O][C][C][=C][N][=C][C][Branch1][C][Br][=C][Ring1][#Branch1]"}, {"from": "gpt", "value": "[C][S][Branch1][C][C][=O].[O].[K+1].[OH1-1]"}]