[{"from": "human", "value": "Given the following reaction, what are some possible reagents that could have been utilized? [C][O][C][=Branch1][C][=O][C][C][S][C][=C][C][=C][C][Branch1][C][C][=C][Ring1][#Branch1]>>[C][C][=C][C][=C][C][Branch1][=Branch2][S][C][C][C][=Branch1][C][=O][O][=C][Ring1][N]"}, {"from": "gpt", "value": "[C][O].[O].[K+1].[OH1-1]"}]