Using O=C(Nc1ccccc1[N+](=O)[O-])OC(c1ccncc1)C1CCNCC1 to produce Nc1ccccc1NC(=O)OC(c1ccncc1)C1CCNCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.