(-)-(2S,3S)-2,3-Epoxy-1-tosyloxypent-4-ene

(+)-(2S,3R)-1-Tosyloxypent-4-en-2,3-diol

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