1-(Thiophene-2-sulfonyl)-piperidine-3-carboxylic acid

(2-Oxo-pyrrolidin-1-yl)-acetic acid

(2-氧代-吡咯烷-1-基)-乙酸

3-(1,1-Dioxo-[1,2]thiazinan-2-yl)-benzoic acid

3-(2-异丙基咪唑-1-基)丙酸, 3-(2-Isopropyl-imidazol-1-yl)-propionic acid

(1-Oxo-1,3-dihydro-isoindol-2-yl)-acetic acid

2-(1-氧代异吲哚啉-2-基)乙酸

4-(Piperidine-1-sulfonyl)-benzoic acid

4-Oxo-3,4-dihydro-phthalazine-1-carboxylic acid

(5,5-Dimethyl-2-oxo-tetrahydro-furan-3-yl)-acetic acid

(1,4,5,6-Tetrahydro-pyrimidin-2-ylsulfanyl)-acetic acid

2,3-Dimethyl-quinoxaline-6-carboxylic acid

2,3-二甲基喹喔啉-6-羧酸

(2,5-Dioxo-pyrrolidin-1-yl)-acetic acid