3-Methyl-8-(methylamino)-1,2,4-triazolo[4,3-a]pyrazine-6-carboxylic acid

rel-1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl (2R)-2-{[(benzyloxy)carbonyl]amino}-4-methanesulfonylbutanoate

rac-1-tert-butyl 3-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl) (3R,5R)-5-tert-butylpiperidine-1,3-dicarboxylate

1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl (1s,3s)-3-({[(tert-butoxy)carbonyl]amino}methyl)-3-methoxycyclobutane-1-carboxylate

rac-1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl (2R)-2-[(2R)-2,3-dihydro-1-benzofuran-2-yl]-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)acetate

rac-1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl (1R,3R)-3-{[(tert-butoxy)carbonyl]amino}-1-methylcyclopentane-1-carboxylate

1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 6-oxabicyclo[3.2.1]oct-3-ene-1-carboxylate

1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 4-methanesulfonylfuran-2-carboxylate

1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(1-{[(9H-fluoren-9-yl)methoxy]carbonyl}pyrrolidin-3-yl)-1,3-thiazole-4-carboxylate

rac-1-tert-butyl 2-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl) (2R,4R)-4-benzylpyrrolidine-1,2-dicarboxylate

rac-1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl (2R,3aS)-3a-methyl-1,1-dioxo-hexahydro-1lambda6-pyrrolo[1,2-b][1,2]thiazole-2-carboxylate