1-((3aR,4S,6R,6aR)-2,2-Dimethyl-6-trityloxymethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-yl)-1H-indole

2,5-di-O-benzoyl-3,4-O-isopropylidene-aldehydo-L-ribose

1,4-di-O-benzoyl-2,3-O-isopropylidene-D-ribitol

1,4-di-O-benzoyl-2,3-O-isopropylidene-5-O-trityl-D-ribitol

(4S,5S)-4-((R)-1-Allyloxy-2-trityloxy-ethyl)-2,2-dimethyl-5-vinyl-[1,3]dioxolane