Using Cc1cc2cnccc2o1, COc1ccc(F)cc1C(C)(C)CC(=O)C(F)(F)F to produce COc1ccc(F)cc1C(C)(C)CC(O)(Cc1cc2cnccc2o1)C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.