6-methyl-2,2-di(propan-2-yl)-1,3-dioxin-4-one

2-甲基-4H-吡喃-4-酮

3-(3-butoxyprop-2-enoyl)-2,6-dimethylpyran-4-one

3-(3,4-dihydro-2H-pyran-5-carbonyl)-2,6-dimethylpyran-4-one

2,2-diethoxy-6-methyl-3-phenyl-3H-pyran-4-one