tert-butyl (3S,5S,6S)-6-<(tert-butoxycarbonyl)amino>-3-<(tert-butyldimethylsilyl)oxy>-5-methoxymethoxy-7-(trityloxy)heptanoate

(E)-5-(4-methoxybenzyloxy)pent-2-en-1-ol

(4S,5R)-4-[2-(4-Methoxy-benzyloxy)-ethyl]-2-phenyl-[1,3]dioxan-5-ol

(4S)-5-benzyloxy-4-benzyloxycarbonylamino-3-oxo-pentanoic acid methyl ester

(4R,5S)-5-((4S,5S)-5-Azido-2-phenyl-[1,3]dioxan-4-ylmethyl)-2-oxo-2λ4-[1,3,2]dioxathiolane-4-carboxylic acid ethyl ester