1'-benzylspiro((1,4-dihydronaphthalene)-1,4'-piperidine)

1'-benzyl-3,4-dihydro-2-oxospiro[naphthalene-1(2H),4'-piperidine]

1,1-bis(methoxycarbonylmethyl)-2-tetralone

1,2,3a,4,5,9b-hexahydro-9b-(methoxycarbonylmethyl)naphtho<2,1-b>furan-2-one

1-benzylspiro(piperidine-4,1'-tetralin)-2'-ol