2-(hydroxymethyl)-3-methylcyclopent-2-en-1-one

1,4,5,8-tetramethyl-3,4-dihydro-2H-naphthalen-1-ol

4-羟基-4-甲基哌啶-1-羧酸苄酯

2-acetyl-3-methylcyclohexan-1-one

1-(1-甲基环丙基)丙酮