Using [N-]=[N+]=NCC(=O)c1ccc([N+](=O)[O-])cc1, COC(=O)CCC(=O)Cl to produce COC(=O)CCc1ncc(-c2ccc([N+](=O)[O-])cc2)o1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.