Using Oc1cccc(C(F)(F)F)c1, O=Cc1ccc(F)c(C(F)(F)F)c1 to produce O=Cc1ccc(Oc2cccc(C(F)(F)F)c2)c(C(F)(F)F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.