Using CCOC(=O)CBr, CC(=O)c1ccc(OCc2c(F)cccc2F)c(O)c1 to produce CCOC(=O)COc1cc(C(C)=O)ccc1OCc1c(F)cccc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.