(2-Methyl-imidazol-1-yl)-acetic acid

2-(4,5-Dihydro-1 H -imidazol-2-ylamino)-propionic acid

(4-Methyl-piperidin-1-yl)-acetic acid

1-Amino-4,6-dimethyl-2-oxo-1,2-dihydro-pyridine-3-carboxylic acid

1-Phenylacetyl-piperidine-4-carboxylic acid

(3-Methyl-2-oxo-2,3-dihydro-imidazo[1,2- a ]pyridin-3-yl)-acetic acid

3-Amino-3-(4-isopropoxy-phenyl)-propionic acid

3-氨基-3-(4-异丙氧基苯基)丙酸

1-(5-Methyl-furan-2-carbonyl)-piperidine-2-carboxylic acid

2-Benzyl-1 H -benzoimidazole-5-carboxylic acid

3-(2,5-Dioxo-imidazolidin-4-yl)-propionic acid

(1,3-Dihydro-isoindol-2-yl)-acetic acid