(S)-2-Amino-N-(2,4-dichloro-benzyl)-N-ethyl-propionamide

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

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

(S)-2-Amino-N-(2,5-dichloro-benzyl)-3,N-dimethyl-butyramide

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

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

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

[(2,4-Dichloro-benzyl)-methyl-amino]-acetic acid

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

[(4-Fluoro-benzyl)-isopropyl-amino]-acetic acid

[Cyclopropyl-(2,6-dichloro-benzyl)-amino]-acetic acid