Using O=[N+]([O-])O, CCCN(C(=O)CC)C1COc2ccccc2C1 to produce CCCN(C(=O)CC)C1COc2ccc([N+](=O)[O-])cc2C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.