Using CC(=O)N1CCc2cc([N+](=O)[O-])c(S(=O)(=O)O)cc21 to produce CC(=O)N1CCc2cc(N)c(S(=O)(=O)O)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.