Using [NH4+], Cc1ccc(C(=O)/C=C(/c2ccc(Br)cc2)C(F)(F)F)cc1 to produce Cc1ccc(C(=O)CC(N)(c2ccc(Br)cc2)C(F)(F)F)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.