Using Cn1c(=O)c2ccc([N+](=O)[O-])cc2n1C(=O)OC(C)(C)C to produce Cn1c(=O)c2ccc(N)cc2n1C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.