Using O=N[O-], COC(=O)c1cc(N)nc(-c2ccc(Cl)c(OC)c2F)n1 to produce COC(=O)c1cc(O)nc(-c2ccc(Cl)c(OC)c2F)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.