Benzyl-[(S)-1-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl)-2,3-dihydroxy-propyl]-carbamic acid tert-butyl ester

Benzyl-[(S)-1-((S)-1,2-dihydroxy-ethyl)-allyl]-carbamic acid tert-butyl ester

(2S,3S)-2-(Benzyl-methyl-amino)-3-methoxy-butane-1,4-diol

Benzyl-[(S)-1-((S)-2-hydroxy-1-methoxy-ethyl)-allyl]-carbamic acid tert-butyl ester

Benzyl-{(S)-1-[(S)-2-(tert-butyl-dimethyl-silanyloxy)-1-hydroxy-ethyl]-allyl}-carbamic acid tert-butyl ester