Using Fc1ccc(Oc2cc3cn[nH]c3cc2Br)c(F)c1, CC(=O)CCl to produce CC(=O)Cn1ncc2cc(Oc3ccc(F)cc3F)c(Br)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.