Using CCOC(=O)C(=O)N(c1ccccc1[N+](=O)[O-])C(C)(C)C to produce CCOC(=O)C(=O)N(c1ccccc1N)C(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.