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