1'-Benzyl-5,7-dimethyl-6-oxospiro(1,3-diazaadamantane-2,4'-piperidine) 195256-70-3 Spiro(1,3-diazatricyclo(3.3.1.1(sup 3,7))decane-2,4'-piperidin)-6-one, 5,7-dimethyl-1'-(phenylmethyl)-