Beta Homophenylalanine Beta Homophenylalanine Beta-homophenylalanine (6) Bromo-beta-homophenylalanine Chloro-beta-homophenylalanine Fluoro-beta-homophenylalanine Iodo-beta-homophenylalanine (6) Methyl-beta-homophenylalanine Nitro-beta-homophenylalanine (6)