(S)-2-Amino-N-isopropyl-N-(4-methylsulfanyl-benzyl)-propionamide

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

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

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

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

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

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

[(4-Cyano-benzyl)-methyl-amino]-acetic acid

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

[Ethyl-(2-fluoro-benzyl)-amino]-acetic acid

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