Using O=C(O)c1ccc(Cl)nc1, CCCn1c(=O)[nH]c(N)c(N)c1=O to produce CCCn1c(=O)[nH]c(N)c(NC(=O)c2ccc(Cl)nc2)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.