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

3-(1,1,2-Trimethyl-propoxy)-but-3-en-2-one

3-oxobut-1-en-2-yl benzoate

2,3-二氢-2,5,6-三甲基吡嗪

2,3-二甲基-6-甲氧基喹噁啉