(S)-2-Amino-N-(4-nitro-benzyl)-propionamide

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

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

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

(4-Nitro-benzylamino)-acetic acid

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

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

[Cyclopropyl-(2-methoxy-benzyl)-amino]-acetic acid

2-[Isopropyl-(1-phenyl-propyl)-amino]-ethanol

2-Amino-N-cyclopropyl-N-(1-phenyl-propyl)-acetamide

N*1*-Isopropyl-N*1*-(1-phenyl-propyl)-ethane-1,2-diamine