Using O=C([O-])[O-], FC(F)(F)c1nc2c(OCc3ccccc3)cc(Br)cc2[nH]1 to produce Cn1c(C(F)(F)F)nc2c(OCc3ccccc3)cc(Br)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.