Using COC(=O)c1ccc(C)c(N)c1C, O=C(O)c1cc(Br)ccc1F to produce COC(=O)c1ccc(C)c(NC(=O)c2cc(Br)ccc2F)c1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.