Using O=C(NC(=S)Nc1cc(Oc2c(F)cccc2F)c(Br)cn1)c1ccccc1 to produce NC(=S)Nc1cc(Oc2c(F)cccc2F)c(Br)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.