Using Nc1cncc(Br)c1, Cc1ccnc(-c2nc3cc(F)cc(F)c3c(Cl)c2C)c1 to produce Cc1ccnc(-c2nc3cc(F)cc(F)c3c(Nc3cncc(Br)c3)c2C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.