Using COC(=O)c1ccc(N2CCOCC2=O)c([N+](=O)[O-])c1, [OH-] to produce O=C(O)COCCNc1ccc(C(=O)O)cc1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.