1'-(2-(4-Chlorophenyl)-2-hydroxyethyl)spiro(4H-3,1-benzoxazine-4,4'-piperidin)-2(1H)-one 85732-30-5 Spiro(4H-3,1-benzoxazine-4,4'-piperidin)-2(1H)-one, 1'-(2-(4-chlorophenyl)-2-hydroxyethyl)-