Using NCc1ccc(Cl)cc1Cl, CCC(CC)C(=O)Nc1sc2c(c1C#N)CCC(=O)C2 to produce CCC(CC)C(=O)Nc1sc2c(c1C#N)CCC(NCc1ccc(Cl)cc1Cl)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.