Using CC(C)(C)OC(=O)OC(=O)OC(C)(C)C, COC(=O)c1cc(CN)cc([N+](=O)[O-])c1 to produce CC(C)(C)OC(=O)NCc1cc(C(=O)O)cc([N+](=O)[O-])c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.