Using Sc1nc2cc(Cl)c(Cl)cc2[nH]1, O=Cc1ccc([N+](=O)[O-])o1 to produce O=Cc1ccc(Sc2nc3cc(Cl)c(Cl)cc3[nH]2)o1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.