Diethyl 1-methylthiomethylene-2-oxo-butanephosphonate

6-Ethylsulfenyl-6-ethylsulfinyl-4-methylthiomethyleneheptan-3-one

(R)-2,3-dimethyl-5-((R)-phenylsulfinyl)cyclopent-2-en-1-one

3-hydroxy-N,2,3-trimethyl-N-phenyl-5-(phenylsulfinyl)pentanamide

2,5-庚二酮