Using CCCCn1c(=O)cc(Cl)[nH]c1=O, COc1ccc(CCl)cc1 to produce CCCCn1c(=O)cc(Cl)n(Cc2ccc(OC)cc2)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.