Using COc1cc(OC)c([N+](=O)[O-])c(OC)c1N, O=C(Cl)OCCCl to produce COc1cc(OC)c([N+](=O)[O-])c(OC)c1NC(=O)OCCCl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.