2-[[2-(1,3-dioxoisoindol-2-yl)acetyl]amino]-3-hydroxypropanoic acid

3-氧代丙酸

2-[bis(carboxymethyl)amino]-3-hydroxypropanoic acid

2-[(2,2-dichloroacetyl)amino]-3-hydroxypropanoic acid

(2S)-2-benzamido-3-hydroxypropanoic acid