(R,S)-alpha-amino-3-hydroxy-5-methyl-4-isooxazole-propionic acid

(RS)-2-amino-3-[3-hydroxy-5-(2-ethyl-2H-5-tetrazolyl)-4-isoxazolyl]propionic acid

(RS)-2-amino-3-[3-hydroxy-5-(2-propyl-2H-5-tetrazolyl)-4-isoxazolyl]propionic acid

(S)-2-AMINO-3-[3-HYDROXY-5-(2-METHYL-2H-TETRAZOL-5-YL)ISOXAZOL-4-YL]PROPIONIC ACID

(RS)-2-amino-3-[3-hydroxy-5-(2-isopropyl-2H-5-tetrazolyl)-4-isoxazolyl]propionic acid

(2S)-2-amino-3-(3-hydroxy-5-methyl-1,2-oxazol-4-yl)propanoic acid

(S)-2-Amino-3-(5-fluoro-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-propionic acid

(2S)-2-aminopentanedioic acid

(S)-1-[2'-Amino-2'-carboxyethyl]-5,7-dihydrothieno[3,4-d]pyrimidin-2,4(1H,3H)-dione

(RS)-2-amino-3-[3-hydroxy-5-(2-benzyl-2H-5-tetrazolyl)-4-isoxazolyl]propionic acid

2-amino-3-(5-bromo-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)propanoic acid

(S)-2-Amino-3-(5-chloro-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-propionic acid

(S)-1-(2'-Amino-2'-carboxyethyl)thieno[3,2-d]pyrimidin-2,4-dione

(S)-2-Amino-3-(5-iodo-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-propionic acid

(S)-1-(2'-Amino-2'-carboxyethyl)-6,6-dimethyl-2,3,4,5,6,7-hexahydrocyclopentapyrimidin-2,4-dione

(2S)-2-amino-3-[5-[2-[[3-(aminomethyl)phenyl]methyl]tetrazol-5-yl]-3-oxo-1,2-oxazol-4-yl]propanoic acid

(S)-1-(2-Amino-2-carboxyethyl)-6,7-dihydro-1H-cyclopenta[d]-pyrimidin-2,4(1H,3H)dione

2-amino-3-(3-ethyl-5-hydroxytriazol-4-yl)propanoic acid

(2S-(2alpha,3beta,4beta))-2-carboxy-4-(1-methylethenyl)-3-pyrrolidineacetic acid

2-amino-3-(2-methyl-5-oxo-1H-triazol-4-yl)propanoic acid

2-amino-3-(5-hydroxy-3-methyltriazol-4-yl)propanoic acid

(2S)-2-amino-3-[3,4-dichloro-5-(5-hydroxypyridin-3-yl)phenyl]propanoic acid

(S)-1-(2'-Amino-2'-carboxyethyl)quinazoline-2,4(1H,3H)-dione

(2R)-2-amino-3-[4-chloro-3-(2,5-dihydroxyphenyl)-5-nitrophenyl]propanoic acid

(2S)-2-amino-3-[5-[2-[[3-(methylaminomethyl)phenyl]methyl]tetrazol-5-yl]-3-oxo-1,2-oxazol-4-yl]propanoic acid

2-amino-3-(5-hydroxy-3-propyltriazol-4-yl)propanoic acid

(2S)-2-amino-3-[3-oxo-5-[2-[[3-[(propan-2-ylamino)methyl]phenyl]methyl]tetrazol-5-yl]-1,2-oxazol-4-yl]propanoic acid

2-Amino-3-(2,4-dihydroxy-pyrimidin-1-yl)-propionic acid(DL-willardiine)

(2S)-2-amino-3-[3-oxo-5-[2-(pyridin-4-ylmethyl)tetrazol-5-yl]-1,2-oxazol-4-yl]propanoic acid

(2S)-2-amino-3-[5-[2-[[3-(ethylaminomethyl)phenyl]methyl]tetrazol-5-yl]-3-oxo-1,2-oxazol-4-yl]propanoic acid

(2R)-2-amino-3-[3-(3-hydroxyphenyl)phenyl]propanoic acid

(RS)-2-Amino-3-(5,6-dichloro-3'-hydroxybiphenyl-3-yl)-propanoic acid

(R)-1-(2-Amino-2-carboxyethyl)-6,7-dihydro-1H-cyclopenta[d]-pyrimidin-2,4(1H,3H)dione

(S)-1-(2'-Amino-2'-carboxyethyl)furo[3,4-d]pyrimidin-2,4-dione

(S,S)-1,3-Di(3'-amino-3'-carboxypropyl)-6,7-dihydro-1H-cyclopenta[d]pyrimidin-2,4(3H,5H)-dione

(S)-1-(3'-Amino-3'-carboxypropyl)-6,7-dihydro-1H-cyclopenta[d]-pyrimidin-2,4(3H,5H)-dione

(2R)-2-amino-3-[3,4-dichloro-5-(5-hydroxypyridin-3-yl)phenyl]propanoic acid

(2S)-2-amino-3-[3-(3-hydroxyphenyl)phenyl]propanoic acid

(2S)-2-amino-3-[4-chloro-3-(3-hydroxyphenyl)phenyl]propanoic acid

(2S)-2-amino-3-[3-chloro-5-(3-hydroxyphenyl)phenyl]propanoic acid

(2S)-2-amino-3-[4-chloro-3-(2,5-dihydroxyphenyl)-5-nitrophenyl]propanoic acid

(2R)-2-amino-3-[3-chloro-5-(3-hydroxyphenyl)phenyl]propanoic acid

(2R)-2-amino-3-[4-chloro-3-(3-hydroxyphenyl)phenyl]propanoic acid

2-amino-3-(2-ethyl-5-oxo-1H-triazol-4-yl)propanoic acid

2-amino-3-(5-oxo-2-propyl-1H-triazol-4-yl)propanoic acid