Using CN(Cc1ccc([N+](=O)[O-])c(C(=O)O)c1)C(=O)OC(C)(C)C to produce CN(Cc1ccc(N)c(C(=O)O)c1)C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.