(2R,3R)-1-O-p-tosyl-4-pentene-1,2,3-triol

((2R,3R)-3-vinyloxiran-2-yl)methanol

[(4S,5S)-2,2-dimethyl-5-vinyl-1,3-dioxolan-4-yl]methyl 4-methyl-benzenesulfonate

((4S,5R)-2,2-dimethyl-5-vinyl-1,3-dioxolan-4-yl)methyl 4-methylbenzenesulfonate

(2S,3S)-1-p-toluenesulfonyl-4-buten-1,2,3-triol