Using O=C(Cl)c1ccc(C(F)(F)F)cc1F, COc1cccc(F)c1 to produce COc1ccc(C(=O)c2ccc(C(F)(F)F)cc2)c(F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.