4-(1,5-Dimethyl-3-oxo-hex-4-enyl)-1-hydroxy-cyclohexanecarbonitrile

三乙基-1,3,5-戊烷三羧酸酯

对环己酮甲酸乙酯

1,4-二噁螺[4.5]癸烷-8-甲醛

5-methyl-1-(1,4-dioxaspiro[4.5]decan-8-yl)hexa-1,4-dien-3-one