Using CCOC(=O)CBr, CC(C)(c1c(F)cc(O)cc1F)C(F)(F)F to produce CCOC(=O)COc1cc(F)c(C(C)(C)C(F)(F)F)c(F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.