3- tert -Butoxycarbonylamino-3-(3,4-dimethoxy-phenyl)-propionic acid

2-Phenyl-benzooxazole-5-carboxylic acid

2-Cyclohexyl-1,3-dioxo-2,3-dihydro-1H -isoindole-5-carboxylic acid

(4-Oxo-4H-benzo[e][1,3]oxazin-3-yl)-acetic acid

3-(Pyridin-4-yl)-propionic acid

3-吡啶-4-基丙酸

(R)-2-(4-Hydroxy-phenyl)-thiazolidine-4-carboxylic acid

6-Cyclopropyl-3-methyl-1-phenyl-1 H -pyrazolo[3,4- b ]pyridine-4-carboxylic acid

7-Naphthalen-2-yl-pyrazolo[1,5- a ]pyrimidine-2-carboxylic acid

3-Methyl-isoxazole-5-carboxylic acid

3-甲基异恶唑-5-甲酸

4-(5-Methyl-3-nitro-pyrazol-1-yl)-butyric acid

7-Trifluoromethyl-[1,2,4]triazolo[1,5-a]pyrimidine-2-carboxylic acid

3-(4-Fluoro-phenyl)-4,5-dihydro-isoxazole-5-carboxylic acid

5-Phenyl-7-trifluoromethyl-4,5,6,7-tetrahydro-pyrazolo[1,5- a ]pyrimidine-2-carboxylic acid

1-(1-Ethyl-3,5-dimethyl-1 H -pyrazole-4-sulfonyl)-piperidine-4-carboxylic acid

1- o -Tolyloxymethyl-1 H -pyrazole-3-carboxylic acid