Using O=C=NC(=O)C(Cl)(Cl)Cl, COc1ccc2c(C(N)=O)c(N)[nH]c2c1 to produce COc1ccc2c(C(N)=O)c(NC(N)=O)[nH]c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.