Using CCn1c(=O)n(-c2ccc(OCc3ccccc3)cc2)c2ncc(OCC(F)(F)F)cc21 to produce CCn1c(=O)n(-c2ccc(O)cc2)c2ncc(OCC(F)(F)F)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.