L-3-(2-萘)-丙氨酸

N-benzylsulfanylcarbonyl-glycine

2-[1-(2-hydroxyethylsulfanyl)isoindol-2-yl]acetic acid

(carboxymethylamino)methyl-(hydroxymethyl)-oxophosphanium

2-[carboxymethyl(formyl)amino]acetic acid