Using [O-][I+3]([O-])([O-])[O-], FC(F)(F)c1cccc2nc(CBr)c(-c3ccccc3Cl)nc12 to produce O=Cc1nc2cccc(C(F)(F)F)c2nc1-c1ccccc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.