Using COc1ccc(-c2cc3cc(OC)cc(CC(F)(F)F)c3o2)cc1 to produce Oc1ccc(-c2cc3cc(O)cc(CC(F)(F)F)c3o2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.