Using CC(=O)OCCc1c([N+](=O)[O-])cc(NC(=O)OC(C)(C)C)c2ccccc12 to produce CC(=O)OCCc1c(N)cc(NC(=O)OC(C)(C)C)c2ccccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.