Using Brc1cnc2[nH]ccc2c1, COC(=O)Nc1ccc(F)c(C=O)c1F to produce COC(=O)Nc1ccc(F)c(C(O)c2c[nH]c3ncc(Br)cc23)c1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.