3-Amino-1-(8-(ethoxymethyl)-6-azaspiro[3.4]octan-6-yl)propan-1-one

1-tert-butyl 2-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl) 5,6-dimethoxy-2,3-dihydro-1H-indole-1,2-dicarboxylate

1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 5-benzyl-2-ethyl-1H-pyrrole-3-carboxylate

1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 5-[({[(9H-fluoren-9-yl)methoxy]carbonyl}[(1r,4r)-4-{[(tert-butoxy)carbonyl]amino}cyclohexyl]amino)methyl]-2-methylfuran-3-carboxylate

tert-butyl 3-{[(4-{[(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)oxy]carbonyl}-5-methylfuran-2-yl)methyl]({[(9H-fluoren-9-yl)methoxy]carbonyl})amino}azetidine-1-carboxylate

rac-2-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl) 3-methyl (2R,3S)-bicyclo[2.2.2]oct-5-ene-2,3-dicarboxylate

1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 3-cyclohexyl-4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanoate

1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 3-(3,4-dihydro-2H-1-benzopyran-6-yl)propanoate

1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 5-(cyclopropylmethoxy)-3-fluoropyridine-2-carboxylate

1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 5-methyl-1-(oxan-4-yl)-1H-pyrazole-3-carboxylate

1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(dimethylamino)-1H-1,3-benzodiazole-5-carboxylate