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