Using COc1cc(Cl)ccc1-c1nsc(CBr)n1, NC(=O)c1c(F)ccc(O)c1F to produce COc1cc(Cl)ccc1-c1nsc(COc2ccc(F)c(C(N)=O)c2F)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.