5,5,9-trimethylspiro[5.5]undeca-3,8-dien-1-ol

3-甲基-2-丁烯醛

1-methyl-4-nitrocyclohexene

4-(1,1'-dimethyl-2'-formylethyl)-1-methyl-4-nitrocyclohexene

6-Methyl-6-(4-methyl-1-nitro-cyclohex-3-enyl)-hept-1-yn-4-ol