methyl 5-oxo-2,2-bis(phenylsulfanyl)pentanoate

1,2,3,8,9,9a-hexahydroquinolizin-4-one

4-ethyl-4-nitro-5-oxooctanal

methyl 2,2-bis(ethylsulfanyl)-5-oxopentanoate

2,2-bis(ethylsulfanyl)-5-oxopentanenitrile