tert-Butyl 5-fluorospiro[indoline-3,4'-piperidine]-1'-carboxylate
6-Fluorospiro[4H-3,1-benzoxazine-4,4'-piperidin]-2(1H)-one
6-Fluorospiro[indoline-3,4'-piperidin]-2-one hydrochloride
5'-Fluorospiro[cyclopropane-1,3'-indolin]-2'-one
