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