2-(1'-hexyl-1'-hydroxy-2'-methyl-3-oxo-2,3-dihydro-1H-isoindol-4-ylamino)-3,6-dioxocyclohexa-1,4-dienecarboxylic acid (2''-hydroxyethyl)amide
2-(1'-pentyl-1'-hydroxy-2',5',7'-trimethyl-3-oxo-2,3-dihydro-1H-isoindol-4-ylamino)-3,6-dioxocyclohexa-1,4-dienecarboxylic acid (2''-hydroxyethyl)amide
2-(2,6-dimethyl-1,3-dioxo-2,3-dihydro-1H-isoindol-4-ylamino)-3,6-dioxo-cyclohexa-1,4-dienecarboxylic acid (2-hydroxy-ethyl)amide