(3-Ethyl-4-oxo-3,4,5,6,7,8-hexahydro-benzo[4,5]thieno[2,3- d ]pyrimidin-2-ylsulfanyl)-acetic acid

3- tert -Butoxycarbonylamino-3-(4-chloro-phenyl)-propionic acid

3-(Boc-氨基)-3-(4-氯苯基)丙酸

2-Acetamidobenzo[d]thiazole-6-carboxylic acid

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

2-Amino-benzothiazole-6-carboxylic acid

2-氨基苯并噻唑-6-甲酸

2-(1-Phenyl-ethylamino)-4-trifluoromethyl-thiazole-5-carboxylic acid

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

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

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

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

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