Using O=C1N([C@H]2CC[C@@H](O)CC2)CC[C@]12CCCNC2, Fc1cc(Br)ccc1I to produce O=C1N([C@H]2CC[C@@H](O)CC2)CC[C@]12CCCN(c1ccc(Br)cc1F)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.