2-Amino-N-(3-chloro-pyrazin-2-ylmethyl)-N-cyclopropyl-acetamide

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

2-Amino-N-(6-methoxy-pyridazin-3-ylmethyl)-acetamide

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

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

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

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

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

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

[(3-Methoxy-pyrazin-2-ylmethyl)-methyl-amino]-acetic acid

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