(2R,3S,4S)-1,3,4-tris(benzyloxy)-5-oxo-6-(trityloxy)hexan-2-yl formate

(2R,3S,4R,5S)-1,3,4-tris(benzyloxy)-6-(trityloxy)hexane-2,5-diol

(2R,3R,4S,5S)-1,3,4-tris(benzyloxy)-6-(trityloxy)hexane-2,5-diyl dimethanesulfonate

((2S,3R,4S,5S)-1-benzyl-3,4-bis(benzyloxy)-5-(benzyloxymethyl)-pyrrolidin-2-yl)methanol

(2S,3S,4R,5S)-tert-btyl 3,4-bis(benzyloxy)-2-(benzyloxymethyl)-5-(hydroxymethyl)pyrrolidine-1-carboxylate