2-环己酮甲酸乙酯

2-(3-methylbut-2-enyl)cyclohexan-1-one

ethyl 1-(3-methyl-2-butenyl)-2-oxocyclohexanecarboxylate

ethyl 7-oxo-1,2,3,4,5,6-hexahydronaphthalene-4a-carboxylate

ethyl (1R)-2-oxo-1-(3-oxobutyl)cyclohexane-1-carboxylate