2-methyl-6-(1,4-dioxaspiro[4.5]decan-8-yl)hept-2-en-4-one

1-hydroxy-5-methyl-1-(1,4-dioxaspiro[4.5]decan-8-yl)hex-4-en-3-one

4-(6-methyl-4-oxohept-5-en-2-yl)cyclohexan-1-one