Using Nc1ccc(Cl)cc1, CCC(=O)CCC(=O)c1ccc(Cl)cc1 to produce CCc1ccc(-c2ccc(Cl)cc2)n1-c1ccc(Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.