Using Cc1nc(-n2ccc(N)cc2=O)sc1C(=O)NCc1ccccc1, O=C(Cl)c1ccccc1 to produce Cc1nc(-n2ccc(NC(=O)c3ccccc3)cc2=O)sc1C(=O)NCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.