(2R,3S)-1-benzoyloxy-3-tosyloxy-5-hexene-2-ol

(2R,3S)-3-tosyloxy-5-hexene-1,2-diol

phenylmethyl (2R,2'S)-2-(oxiran-2-yl)pyrrolidine-1-carboxylate

benzyl (R)-2-((S)-1-hydroxy-2-(tosyloxy)ethyl)pyrrolidine-1-carboxylate