Using CS(=O)(=O)c1nc2cccnc2n1CC(F)F, Oc1ccc(Br)cc1 to produce FC(F)Cn1c(Oc2ccc(Br)cc2)nc2cccnc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.