5-hydroxy-4-methylideneheptan-3-one

6-nitroheptan-3-one

1-[2,2-bis(phenylsulfanyl)cyclopropyl]propan-1-one

ethyl 2-acetyl-2-fluoro-5-oxoheptanoate

3-hydroxy-2,4,4-trimethylcyclohex-2-en-1-one