Using CC(=O)OC1CC(=O)N1, CC(C)(C)OC(=O)C(=[N+]=[N-])C(=O)CCl to produce CC(C)(C)OC(=O)C(=[N+]=[N-])C(=O)C(Cl)C1CC(=O)N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.