Using COC(=O)CC(=O)OC, COc1ccc([N+](=O)[O-])c(F)c1 to produce COC(=O)C(C(=O)OC)c1cc(OC)ccc1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.