Using Brc1ccc[se]1, CCC1CCC(c2ccc(B(O)O)c(F)c2F)CC1 to produce CCC1CCC(c2ccc(-c3ccc[se]3)c(F)c2F)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.