6-[2-(3,4-dimethoxyphenyl)ethenyl]-4-methoxypyran-2-one

6-甲基-4-氧代-4H-吡喃-3-羧酸

4-methoxy-6-methyl-2-pyrone-3-carboxaldehyde

4-甲氧基-6-(2-苯基乙基)吡喃-2-酮

4-methoxy-6-[2-(4-methoxyphenyl)ethyl]pyran-2-one