Using Cc1cc(OCc2ccc(F)cc2F)c(Br)c(=O)[nH]1, COC(=O)/C=C/CBr to produce COC(=O)/C=C/Cn1c(C)cc(OCc2ccc(F)cc2F)c(Br)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.