英文名称: | 3-hexanone, 4,4-diphenyl-6-(2,3-dihydrospiro(naphthalene-1(4h),4'-piperid)-1'-y | oxalate | 1-(3,3'-diphenyl-4-oxohexyl)piperidine-4-spiro-1'(1',2',3',4'-tetrahydro naph | thalene) oxalate | 4,4-diphenyl-6-(2,3-dihydrospiro(naphthalene-1(4h),4'-piperid)-1'-yl)-3-hexanon oxalate |
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