(2R,3S,4S,5R)-4-Benzyloxy-2-[2-(tert-butyl-dimethyl-silanyloxy)-ethyl]-5-((4S,5S)-2,2-dimethyl-5-trityloxymethyl-[1,3]dioxolan-4-yl)-tetrahydro-furan-3-ol

(2R,3R,4R,5S)-4-benzyloxy-5-(1,3-dithian-2-yl)-3-(4-methoxybenzyloxy)-2-trityloxymethyltetrahydrofuran

[(2R,3R,4S,5R)-4-Benzyloxy-5-((4S,5S)-2,2-dimethyl-5-trityloxymethyl-[1,3]dioxolan-4-yl)-3-(4-methoxy-benzyloxy)-tetrahydro-furan-2-yl]-acetaldehyde

(2R,3R,4S,5R)-4-Benzyloxy-5-[1,3]dithian-2-yl-2-hydroxymethyl-tetrahydro-furan-3-ol

2,2-Dimethyl-propionic acid (4S,5S)-5-[(2R,3R,4R,5R)-3-hydroxy-5-(2-hydroxy-ethyl)-4-methoxymethoxy-tetrahydro-furan-2-yl]-2,2-dimethyl-[1,3]dioxolan-4-ylmethyl ester