Using O=C(NC1CCN(c2ccccc2)C1)c1ccc([N+](=O)[O-])cc1 to produce Nc1ccc(C(=O)NC2CCN(c3ccccc3)C2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.