Using BrCc1ccc2ccccc2c1, CCOC(=O)CCc1cc(F)c(O)c(F)c1 to produce CCOC(=O)CCc1cc(F)c(OCc2ccc3ccccc3c2)c(F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.