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