Using O=Cc1ccc(-c2cc(C(F)(F)F)n(Cc3ccccc3)n2)o1 to produce OCc1ccc(-c2cc(C(F)(F)F)n(Cc3ccccc3)n2)o1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.