tert-Butyl 6-chloro-2-oxo-1,2-dihydrospiro[benzo[d][1,3]oxazine-4,4'-piperidine]-1'-carboxylate
6-Chloro-1,2-dihydro-2-oxospiro[4H-3,1-benzoxazin-4,4'-piperidine]
6-Fluorospiro[4H-3,1-benzoxazine-4,4'-piperidin]-2(1H)-one
1'-Boc-1,2-dihydro-2-oxo-spiro[4H-3,1-benzoxazine-4,4'-piperidine]
Spiro[benzo[d][1,3]oxazine-4,4'-piperidin]-2(1H)-one hydrochloride
