(2S,3S,4S)-3,4-Bis-(2-methoxy-ethoxymethoxy)-pyrrolidine-1,2-dicarboxylic acid 1-(9H-fluoren-9-ylmethyl) ester

(2R,3S,4S)-1-Benzyl-3,4-bis-(2-methoxy-ethoxymethoxy)-2-trityloxymethyl-pyrrolidine

Methanesulfonic acid (1S,2R,3S)-4-methanesulfonyloxy-2,3-bis-(2-methoxy-ethoxymethoxy)-1-trityloxymethyl-butyl ester

(2R,3S,4S)-2-Hydroxymethyl-3,4-bis-(2-methoxy-ethoxymethoxy)-pyrrolidine-1-carboxylic acid 9H-fluoren-9-ylmethyl ester

(2S,3S,4S)-2,3-Bis-(2-methoxy-ethoxymethoxy)-5-trityloxy-pentane-1,4-diol