Using O=N[O-], CCOC(=O)C(OC)C(Oc1ccccc1N)c1ccccc1 to produce CCOC(=O)C(OC)C(Oc1ccccc1O)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.