Using CCOC(=O)CBr, Cc1cc(C(C)(C)C(=O)c2sc(-c3ccc(C(F)(F)F)cc3)cc2C)ccc1O to produce CCOC(=O)COc1ccc(C(C)(C)C(=O)c2sc(-c3ccc(C(F)(F)F)cc3)cc2C)cc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.