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

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

2-Benzotriazol-2-yl-propionic acid

3-(2-Oxo-pyrrolidin-1-yl)-propionic acid

3-Acetylamino-4-morpholin-4-yl-benzoic acid

9-Trifluoromethyl-5,6,7,8-tetrahydro-pyrazolo[5,1- b ]quinazoline-2-carboxylic acid

(5- p -Tolyl-tetrazol-2-yl)-acetic acid

2-(4-Oxo-4 H -quinazolin-3-yl)-propionic acid

2-(4-氧代-4 H-喹唑啉-3-基)-丙酸

2-肼基-3-吡啶羧酸盐酸盐, 2-Hydrazino-nicotinic acid

1-Benzyl-5-oxo-pyrrolidine-3-carboxylic acid

1-苯基-5-氧代吡咯烷-3-甲酸

7-Fluoro-1,2,3,4-tetrahydro-acridine-9-carboxylic acid