Using COC(=O)c1ccc(S(C)(=O)=O)c(C2=NOC(C)C2)c1Cl to produce CC1CC(c2c(S(C)(=O)=O)ccc(C(=O)O)c2Cl)=NO1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.