Pyrrolo[3,4-b]pyrrole-5(1H)-carboxylic acid, hexahydro-, 1,1-dimethylethyl ester
1,1-Dimethylethyl hexahydropyrrolo[3,4-b]pyrrole-5(1H)-carboxylate
Hexahydropyrrolo[3,4-b]pyrrole-5-carboxylic acid tert-butyl ester
tert-Butyl 2,7-diazabicyclo[3.3.0]octane-7-carboxylate
tert-Butyl Hexahydropyrrolo[3,4-b]pyrrole-5-carboxylate