Using O=C(c1ccc(Cl)cc1)c1ccc([N+](=O)[O-])cc1, OCCO to produce O=[N+]([O-])c1ccc(C2(c3ccc(Cl)cc3)OCCO2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.