Using COC(=O)c1ccc(CBr)cc1, O=c1[nH]nc(-c2ccc(Cl)cc2)n1CC(O)C(F)(F)F to produce COC(=O)c1ccc(Cn2nc(-c3ccc(Cl)cc3)n(CC(O)C(F)(F)F)c2=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.