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

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

(S)-2-Amino-N-(2,6-dichloro-benzyl)-N-ethyl-3-methyl-butyramide

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

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

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

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

(4-Methyl-benzylamino)-acetic acid

[(2,5-Dichloro-benzyl)-ethyl-amino]-acetic acid

[(2,6-Dichloro-benzyl)-ethyl-amino]-acetic acid

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