"tert-Butyl 2',3'-dihydrospiro{piperidine-4,1'-pyrrolo[3,2-b]pyridine}-1-carboxylate"
"tert-Butyl 2',3'-dihydrospiro{piperidine-4,1'-pyrrolo[3,2-b]pyridine}-1-carboxylate"
"tert-Butyl 2',3'-dihydrospiro{piperidine-4,1'-pyrrolo[3,2-b]pyridine}-1-carboxylate"