Using O=C(O)Cc1ccc(Cl)cc1C(=O)c1ccc([N+](=O)[O-])cc1 to produce O=[N+]([O-])c1ccc(C2OCCc3ccc(Cl)cc32)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.