1'-Boc-spiro[indoline-3,4'-piperidine]

1'-Boc-1,2-dihydro-spiro[3H-indole-3,4'-piperidine]

1'-N-BOC-1,2-DIHYDRO-1'H-SPIRO[INDOLE-3,4'-PIPERIDINE]

tert-butyl spiro[indoline-3,4'-piperidine]-1'-carboxylate

spiro[indoline-3,4'-piperidine]-1'-carboxylic acid tert-butyl ester

tert-butyl 1,2-dihydro-1'H-spiro[indole-3,4'-piperidine]-1'-carboxylate