Using CC(=O)OC(C(=O)NC(C)(C)C)c1ccc([N+](=O)[O-])cn1 to produce CC(=O)OC(C(=O)NC(C)(C)C)c1ccc(N)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.