罌粟啶

5-氧代环戊-1-烯-1-庚酸

2-(5-carboxypentyl)cyclohex-2-en-1-one

6-chloro-8-chloromethyl-benzo[1,3]dioxin-4-one

6-chloro-4-oxo-4H-benzo[1,3]dioxin-8-carbaldehyde