6-benzyl 5-tert-butyl (6S)-4-oxo-5-azaspiro[2.4]heptane-5,6-dicarboxylate

6-benzyl 5-tert-butyl (6S)-4-oxo-5-azaspiro[2.4]heptane-5,6-dicarboxylate · CAS 1628205-95-7