3-bromo-3,5,5-trimethylheptan-4-one

3-bromo-5,5-diethyl-3-methylheptan-4-one

4-bromo-2,2,4-trimethylhexan-3-one

(4-methoxy-2-prop-1-enylphenyl) 2-methylbutanoate

乙基甲基丙二酸