(S)-2-Amino-N-(2-fluoro-benzyl)-N-methyl-propionamide

(S)-2-Amino-N-(3-chloro-benzyl)-N-cyclopropyl-propionamide

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

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

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

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

(4-Cyano-benzylamino)-acetic acid

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

[(2-Chloro-benzyl)-ethyl-amino]-acetic acid

[Isopropyl-(4-methylsulfanyl-benzyl)-amino]-acetic acid

[(2-Chloro-benzyl)-cyclopropyl-amino]-acetic acid