Using Oc1cnc(OCCC(F)(F)F)c(Cl)c1, CS(=O)(=O)NC(=O)c1cc(F)c(CBr)cc1F to produce CS(=O)(=O)NC(=O)c1cc(F)c(COc2cnc(OCCC(F)(F)F)c(Cl)c2)cc1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.