370879-99-5
ethyl (3aR,6aR)-1-[(1R)-1-phenylethyl]-2,3,3a,4,6,6a-hexahydropyrrolo[3,4-b]pyrrole-5-carboxylate
→
948846-39-7
(3aR,6aR)-5-乙氧羰基六氢吡咯并[3,4-b]吡咯