Using CCOC(=O)c1[nH]c2cc([N+](=O)[O-])c(Br)cc2c1S(=O)(=O)N1CCOCC1 to produce CCOC(=O)c1[nH]c2cc(N)c(Br)cc2c1S(=O)(=O)N1CCOCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.