(2R,3S)-2-Benzylamino-hex-5-ene-1,3-diol

(2S,3S)-2-[benzyl(tert-butoxycarbonyl)amino]-3-(tert-butyldimethylsilyloxy)hex-5-enoic acid methyl ester

(2S,3S)-2-(Benzyl-tert-butoxycarbonyl-amino)-3-(tert-butyl-dimethyl-silanyloxy)-hex-5-enoic acid

Benzyl-((1R,2S)-2-hydroxy-1-hydroxymethyl-pent-4-enyl)-carbamic acid tert-butyl ester

Benzyl-[(1R,2S)-2-(tert-butyl-dimethyl-silanyloxy)-1-hydroxymethyl-pent-4-enyl]-carbamic acid tert-butyl ester