Using CN1CCC(=O)CC1, O=[N+]([O-])c1ccc2cc[nH]c2c1 to produce CN1CCC(c2c[nH]c3cc([N+](=O)[O-])ccc23)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.