Using O=C(Cl)Cc1ccc(Cl)cc1, CN(Cc1ccc(Cl)s1)c1ccc(N)c(Cl)c1 to produce CN(Cc1ccc(Cl)s1)c1ccc(NC(=O)Cc2ccc(Cl)cc2)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.