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