(S)-2-Amino-N-isopropyl-N-(1-pyridin-2-yl-ethyl)-propionamide

(S)-2-Amino-N-cyclopropyl-N-(1-pyridin-2-yl-ethyl)-propionamide

2-Amino-N-isopropyl-N-pyridin-2-ylmethyl-acetamide

(S)-2-Amino-N-isopropyl-N-pyridin-3-ylmethyl-propionamide

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

(S)-2-Amino-3,N-dimethyl-N-pyridin-4-ylmethyl-butyramide

[Cyclopropyl-(1-pyridin-2-yl-ethyl)-amino]-acetic acid

(Isopropyl-pyridin-3-ylmethyl-amino)-acetic acid

[(2-Furan-2-yl-2-oxo-ethyl)-isopropyl-amino]-acetic acid

(2-Oxo-2-thiophen-2-yl-ethylamino)-acetic acid

[Isopropyl-(1-thiazol-2-yl-ethyl)-amino]-acetic acid