[{"from": "human", "value": "Based on the given chemical reaction, can you propose some likely reagents that might have been utilized? [C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][O].[C][S][=Branch1][C][=O][=Branch1][C][=O][Cl]>>[C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][O][S][Branch1][C][C][=Branch1][C][=O][=O]"}, {"from": "gpt", "value": "[C][C][N][Branch1][=Branch1][C][Branch1][C][C][C][C][Branch1][C][C][C].[Cl][C][Cl].[O]"}]