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

(3aR,4R,6aS)-4-((S)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-2,2-dimethyl-tetrahydro-[1,3]dioxolo[4,5-c]pyrrole-5-carboxylic acid tert-butyl ester

(2S,3S)-3-(tert-butoxycarbonyl)pent-4-en-1,2-diol