[(6-Chloro-pyridin-3-ylmethyl)-methyl-amino]-acetic acid

(S)-2-Amino-N-pyridin-2-ylmethyl-propionamide

(S)-2-Amino-N-cyclopropyl-3-methyl-N-pyridin-2-ylmethyl-butyramide

2-Amino-N-cyclopropyl-N-pyridin-3-ylmethyl-acetamide

2-Amino-N-cyclopropyl-N-pyridin-4-ylmethyl-acetamide

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

[(Pyridin-4-ylmethyl)-amino]-acetic acid

(2-Furan-2-yl-2-oxo-ethylamino)-acetic acid

{Cyclopropyl-[2-oxo-2-(1H-pyrrol-2-yl)-ethyl]-amino}-acetic acid

[Isopropyl-(2-oxo-2-thiophen-2-yl-ethyl)-amino]-acetic acid

(Furan-2-ylmethyl-isopropyl-amino)-acetic acid