2-HYDROXY-4-PHTHALIMIDOBUTYRIC ACID

4-PHTHALIMIDO-2-HYDROXY BUTYRIC ACID

1,3-Dihydro-a-hydroxy-1,3-dioxo-2H-isoindole-2-butanoic acid

1,3-DIHYDRO-ALPHA-HYDROXY-1,3-DIOXO-2H-ISOINDOLE-2-BUTANOIC ACID