Using O=S(=O)(c1ccccc1)n1ccc2c(Cl)nc(Cl)nc21, CC(C)=O to produce CC(C)(O)c1cc2c(Cl)nc(Cl)nc2n1S(=O)(=O)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.