Using O=C(O)C(N(Cc1ccccc1)Cc1ccccc1)C1(Oc2ccccc2[N+](=O)[O-])CCCCC1 to produce Nc1ccccc1OC1(C(C(=O)O)N(Cc2ccccc2)Cc2ccccc2)CCCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.