Using CCOC(=O)CBr, O=C1c2ccc(F)cc2CC1c1ccc(F)cc1 to produce CCOC(=O)CC1(c2ccc(F)cc2)Cc2cc(F)ccc2C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.