Using Fc1ccccc1CBr, O=c1[nH]cc(Cc2ccc(F)cc2F)cc1I to produce O=c1c(I)cc(Cc2ccc(F)cc2F)cn1Cc1ccccc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.