Using OC(c1ccc(CBr)cc1)(C(F)(F)F)C(F)(F)F, Nc1ccc2c(c1)ncn2C1CCNCC1 to produce Nc1ccc2c(c1)ncn2C1CCN(Cc2ccc(C(O)(C(F)(F)F)C(F)(F)F)cc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.