[5-(2,4-dioxopyrimidin-1-yl)-2-(trityloxymethyl)oxolan-3-yl] methanesulfonate

1-methylsulfonylpyridin-1-ium,chloride

2-(4-chlorophenyl)sulfonyl-2-methylsulfonyl-1-phenylethanone

2-(4-methylphenyl)sulfonyl-2-methylsulfonyl-1-phenylethanone

ethyl 2-(4-chlorophenyl)sulfonyl-2-methylsulfonylacetate