1',2'-二氢螺[氮杂环丁烷-3,3'-吡咯并[3,2-b]吡啶] -1-羧酸叔丁酯

tert-butyl 1',2'-dihydrospiro[azetidine-3,3'-pyrrolo[3,2-b]pyridine]-1-carboxylate