2-Amino-N-cyclopropyl-N-(2-oxo-2-pyrazin-2-yl-ethyl)-acetamide

2-Chloro-N-cyclopropyl-N-(6-methoxy-pyridazin-3-ylmethyl)-acetamide

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

(S)-2-Amino-N-isopropyl-N-(3-methylsulfanyl-pyrazin-2-ylmethyl)-propionamide

(S)-2-Amino-N-(3-chloro-pyrazin-2-ylmethyl)-N-methyl-propionamide

(S)-2-Amino-N-(3-chloro-pyrazin-2-ylmethyl)-N-isopropyl-propionamide

(S)-2-Amino-N-methyl-N-(2-oxo-2-pyrazin-2-yl-ethyl)-propionamide

(S)-2-Amino-N-cyclopropyl-3-methyl-N-(2-oxo-2-pyrazin-2-yl-ethyl)-butyramide

(S)-2-Amino-N-(6-methoxy-pyridazin-3-ylmethyl)-propionamide

(Isopropyl-pyrazin-2-ylmethyl-amino)-acetic acid

[(3-Chloro-pyrazin-2-ylmethyl)-isopropyl-amino]-acetic acid

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

[(6-Methoxy-pyridazin-3-ylmethyl)-amino]-acetic acid

[Isopropyl-(6-methoxy-pyridazin-3-ylmethyl)-amino]-acetic acid

2-[(2-Hydroxy-ethyl)-isopropyl-amino]-1-thiazol-2-yl-ethanone