[{"from": "human", "value": "Based on the given chemical reaction, can you propose some likely reagents that might have been utilized? [C][C][=Branch1][C][=O][Cl].[O][=C][C][=C][C][=C][Branch1][Ring2][S][Ring1][Branch1][C][C][N][C][Ring1][#Branch1]>>[C][C][=Branch1][C][=O][N][C][C][C][S][C][Branch1][Ring1][C][=O][=C][C][=Ring1][#Branch1][C][Ring1][O]"}, {"from": "gpt", "value": "[Cl].[Cl][C][Cl]"}]