3-(tert-Butyl-dimethyl-silanyloxy)-6-methyl-2-[(E)-3-((R)-toluene-4-sulfinyl)-allylsulfanylmethyl]-pyran-4-one

diethyl (E)-2-(3-(4-methyl-N-((trifluoromethyl)sulfonyl)phenylsulfonimidoyl)allyl)malonate

diethyl (E)-2-(3-(4-methyl-N-tosylphenylsulfonimidoyl)allyl)malonate

diethyl (E)-2-(3-(4-methyl-N-(4-nitrobenzoyl)phenylsulfonimidoyl)allyl)malonate

diethyl 2-[(5-tert-butyldimethylsilyloxy-4-oxo-4H-2-pyranyl)methyl]-2-[(2E,RS)-3-p-tolylsulfinyl-2-propenyl]malonate