Using BrC(Br)(Br)Br, COc1ccc(OCCO)c(CN(C(C)=O)c2cc(F)ccc2Oc2ccccc2)c1 to produce COc1ccc(OCCBr)c(CN(C(C)=O)c2cc(F)ccc2Oc2ccccc2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.