4,4,7-trimethyl-1,3-dihydronaphthalen-2-one

烟叶酮

2,6,10,10-四甲基-1-氧杂螺[4.5]癸-2,6-二烯-8-酮

4-(3-hydroxybut-1-enylidene)-3,5,5-trimethylcyclohex-2-en-1-one

8-(But-3-enyl)-7,9,9-trimethyl-1,4-dioxaspiro[4.5]dec-6-en-8-ol