ethyl 4-{[3-(4-fluoro-2-methoxyphenyl)-6-oxopyridazin-1(6H)-yl]acetyl}piperazine-1-carboxylate

1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 5-methyl-2-[methyl(propan-2-yl)amino]benzoate

1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 2-(4-methylpiperazin-1-yl)-1,3-thiazole-5-carboxylate

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

1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl 4-(benzyloxy)-3,5-difluorobenzoate

1-tert-butyl 1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl (4S)-4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pentanedioate

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

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

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

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

4-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl) 3-(9H-fluoren-9-yl)methyl (4R)-1,3-thiazolidine-3,4-dicarboxylate