Using O=C(OO)c1cccc(Cl)c1, CS(=O)c1cc([N+](=O)[O-])c(Cl)cc1Cl to produce CS(=O)(=O)c1cc([N+](=O)[O-])c(Cl)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.