Using COC(=O)c1cc(C)c2c(c1)S(=O)Cc1cc([N+](=O)[O-])cc(Cl)c1O2 to produce COC(=O)c1cc(C)c2c(c1)S(=O)Cc1cc(N)cc(Cl)c1O2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.