5-hydroxy-2,2,5-trimethylhept-6-en-3-one

3,3-二甲基丁酸苄酯

2-叔-丁基-2-甲基-1,3-二氧戊环

3,3-dimethyl-1-(4-methylphenyl)butan-2-one

3,3-dimethyl-1-(3-methylphenyl)butan-2-one