Using COC(=O)c1ccc(C)c(N)c1, O=C(Cl)C=Cc1cccnc1 to produce COC(=O)c1ccc(C)c(NC(=O)C=Cc2cccnc2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.