H-D-PYG(3)-(C*CH2)OH

H-b-Ala-(3-pyridyl)-OH

H-BETA-ALA-(3-PYRIDYL)-OH

(S)-3-AMINO-3-(3-PYRIDYL)-PROPIONIC ACID

(S)-3-AMINO-3-PYRIDIN-3-YL-PROPIONIC ACID

(S)-3-AMINO-3-(PYRIDIN-3-YL)PROPANOIC ACID