1-Piperazinecarboxylic acid, 4-[2-(2,6-dioxo-3-piperidinyl)-2,3-dihydro-1,3-dioxo-1H-isoindol-5-yl]-, 1,1-dimethylethyl ester
1-Piperazinecarboxylic acid, 4-[2-(2,6-dioxo-3-piperidinyl)-2,3-dihydro-1,3-dioxo-1H-isoindol-5-yl]-, 1,1-dimethylethyl ester