1-benzyl-4-hydroxy-4-(2-amino-5-chlorophenyl)piperidine

1'-benzyl-6-chlorospiro(4H-3,1-benzoxazine-4,4'-piperidin)-2(1H)-one

Spiro[benzo[d][1,3]oxazine-4,4'-piperidin]-2(1H)-one hydrochloride