Using CCOC(=O)Nc1cc(Cl)c([N+](=O)[O-])c(NC(=O)OCC)n1 to produce CCOC(=O)Nc1cc(Cl)c2[nH]c(=O)[nH]c2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.