5- tert -Butyl-2-methyl-4-nitro-2 H -pyrazole-3-carboxylic acid

3-[5-(2,4-Dichloro-phenyl)-furan-2-yl]-acrylic acid

(R)-3-tert-Butoxycarbonylamino-4-phenyl-butyric acid

Boc-D-β-高苯丙氨酸

4-Methyl-3-pyrrolidin-1-yl-benzoic acid

(2-Methyl-thiazol-4-yl)-acetic acid

2-甲基-4-噻唑乙酸

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