(R)-2-(1,3-Dioxo-1,3-dihydro-isoindol-2-yl)-3-methyl-but-3-enoic acid

(R)-2-phthalimidobutyric acid

2-((3R,4R)-4,5-dihydroxypent-1-en-3-yl)isoindoline-1,3-dione

(R)-2-phthalimido-3-butenal

(Z)-2-(1,3-Dioxo-1,3-dihydro-isoindol-2-yl)-but-2-enal