Using O=[N+]([O-])c1ccc2c(c1)C(=NCCN1CCc3ccccc3C1)CCC2 to produce O=[N+]([O-])c1ccc2c(c1)C(NCCN1CCc3ccccc3C1)CCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.