(S)-2-Amino-N-(4-bromo-benzyl)-N-cyclopropyl-propionamide

(S)-2-Amino-N-(2-chloro-benzyl)-3-methyl-butyramide

(S)-2-Amino-N-(4-bromo-benzyl)-3,N-dimethyl-butyramide

(S)-2-Amino-N-ethyl-N-(3-fluoro-benzyl)-3-methyl-butyramide

(S)-2-Amino-N-ethyl-3-methyl-N-(4-methylsulfanyl-benzyl)-butyramide

(S)-2-Amino-N-(3-fluoro-benzyl)-N-isopropyl-3-methyl-butyramide

(S)-2-Amino-N-(4-bromo-benzyl)-N-cyclopropyl-3-methyl-butyramide

(S)-2-Amino-N-cyclopropyl-3-methyl-N-(3-methyl-benzyl)-butyramide

(3-Chloro-benzylamino)-acetic acid

[Methyl-(2-methyl-benzyl)-amino]-acetic acid

[(3-Bromo-benzyl)-methyl-amino]-acetic acid