Ethyl 6-amino-1-benzothiophene-3-carboxylate

1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 4-{[(tert-butoxy)carbonyl]amino}-1-methyl-1H-pyrazole-3-carboxylate

1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 1-{1-[(tert-butoxy)carbonyl]azetidin-3-yl}-5-oxopyrrolidine-3-carboxylate

1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 5-{[(tert-butoxy)carbonyl]amino}pyrazolo[1,5-a]pyridine-3-carboxylate

1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 1-({[(tert-butoxy)carbonyl]amino}methyl)-2-oxabicyclo[2.2.2]octane-4-carboxylate

tert-butyl (6S)-6-{2-[(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)oxy]-2-oxoethyl}-5-azaspiro[2.4]heptane-5-carboxylate

1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 1-(2-chlorophenyl)-5-oxopyrrolidine-3-carboxylate

1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl (2S)-3-(2-chlorophenyl)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoate

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

1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 1-(benzyloxy)-5-oxopyrrolidine-3-carboxylate

1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 2-[(4-{[(tert-butoxy)carbonyl]amino}phenyl)methyl]-1,3-thiazole-4-carboxylate