(S)-2-Amino-N-(2,3-dichloro-benzyl)-N-isopropyl-propionamide

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

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

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

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

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

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

(2-Iodo-benzylamino)-acetic acid

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

[(2,3-Dichloro-benzyl)-ethyl-amino]-acetic acid

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