Using O=Cc1ccc(Cl)cc1Cl, O=[N+]([O-])c1ccc(O)c(S)c1 to produce O=[N+]([O-])c1ccc2c(c1)SC(c1ccc(Cl)cc1Cl)O2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.