Using O=C(Cl)C1CCCCC1, NC(Cc1ccc(F)cc1)C(O)c1ccc(F)cc1 to produce O=C(NC(Cc1ccc(F)cc1)C(O)c1ccc(F)cc1)C1CCCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.