Using O=[N+]([O-])c1ccc2c(c1)NCC2, O=C(Cl)OCc1ccccc1 to produce O=C(OCc1ccccc1)N1CCc2ccc([N+](=O)[O-])cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.