Using CC1CN(C(=O)C(F)(F)F)CCc2nc(O)c(Br)cc21, O=S(=O)(OS(=O)(=O)C(F)(F)F)C(F)(F)F to produce CC1CN(C(=O)C(F)(F)F)CCc2nc(OS(=O)(=O)C(F)(F)F)c(Br)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.