4-chloro-3-(5-formyl-furan-2-yl)-benzoic acid methyl ester

(3-oxo-5-prop-2-enylcyclopenten-1-yl) acetate

2-(呋喃-2-基)苯并[d]噁唑

2-hydroxy-6-(3-methylpent-4-enyl)-2H-pyran-5-one

[6-(3-methylpent-4-enyl)-5-oxo-2H-pyran-2-yl] acetate