Using OB(O)c1ccc(Br)c(F)c1F, COC(=O)c1c(I)ccnc1C to produce COC(=O)c1c(-c2ccc(Br)c(F)c2F)ccnc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.